Weighted Averages in SAT Math

The phrase â€Å"weighted average† may be a little scary sounding, but it’s nothing to get freaked out over. Usually weighted averages on the SAT will use the basic formula for finding the mean (link to â€Å"SAT Math Types of Averagesâ€Å"). Its pretty much the same skill. What is a â€Å"weighted average†? Basically, weighted means uneven, here; the numbers that you’re looking at don’t carry the same importance. For example, if I’m trying to find the average number of fleas that my pets have, and each cat has 150 while each dog has 200, then those two numbers have equal â€Å"weight† only if I have the same number of cats as dogs. Let’s say I have 1 of each. That’s just a normal mean, so that’s no problem. Well, the fleas are a problem, I guess. And the fact that I’m counting fleas might have my family a little worried†¦anyway, the math is easy. But that’s a non-weighted average. For a weighted average, I would have a different number of cats than dogs. Let’s say I had 3 cats and 2 dogs. (And they all have fleas†¦things are starting to get kinda gross. Sorry.) In order to give them the appropriate weight, we’d have to multiply each piece appropriately and change the total (denominator) to reflect it. But if you expand that, you’ll see that it’s the same as the standard mean formula. Just make sure you divide by five (because I have seven pets) not two (for two types of pets). Finding average rates Average rates are a type of weighted average. Your SAT will include a problem or two about these, and you need to be sure not to fall for the common trap. Maria’s drive to the supermarket takes her 20 minutes, during which she averages a speed of 21 miles per hour. She takes the same route home, but it only takes 15 minutes to cover the equal distance. What was Maria’s average speed while driving? 15.5 mph 21 mph 24 mph 24.5 mph 28 mph This is a tricky, multi-step problem, and you can’t plug in the answer choices to solve it, sadly. Let’s first find all of our information, because the question has only given you part of it. You need to know the formula r=d/t (rate = distance/time), also expressed as d=rt (easily remembered as the â€Å"dirt† formula). We’re going to use it both ways. Using that formula, let’s look at the first leg of her trip. She travelled for of an hour at 21 mph, so she must have travelled 7 miles. That’s Using that info, we can figure out the rate of her trip back home. Going 7 miles in of an hour on the way home, she went an average of 28 mph. That’s So now we need to find the total average. That’s not the average of the two numbers we have! Because each mile she travelled on the way there took more time than each mile on the way home, they have different weights! âÅ"â€" Instead, you need to take the total of each piece—total time and total distance—to find the total, average rate. âÅ"“ Weighted averages that you won’t see on your SAT Ive never seen an SAT question that asks you to find an average based on percent weights (e.g. finding a final grade in a class where quizzes count for 70%, attendance for 20%, and participation for 10%). Finding that average is a little more complicated, so it’s nice that we don’t have to worry about it. Simply put If you’re finding the average of two sets of information that already are averages in their own right, like the number of fleas per cat and the number fleas per dog, you can’t just take the mean of those averages. You have to find the totals and then plug them into the formula. You should be excited for these kinds of problems, if for nothing more than having the opportunity to bust out your handy-dandy, brand-spankin new SAT calculator. 😛

My Mom And I Had An Unbreakable Bond From The Day I Was Born

My mom and I had an unbreakable bond from the day I was born. For starters, her and I were alone. Me, a new born, and a 19 year-old graduate, beginning a new life. Although she was a single mother, we had an amazing amount of support from family. I grew up surrounded by three loving uncles and two magnificent grandparents. So, technically, we weren t â€Å"alone.† But in many ways, it was just her and I, which made us have a relationship many people can t say they have with their mom, and she taught me so many things throughout the years. As I reminisce, I recall many absents of my mother. She wasn t leaving because she wanted to, but only to support and care me, making sure I had all of the good things as a little girl. Being a single†¦show more content†¦Knowing she played both roles as mother and father, I hope to amount to at least half of the woman she is. Because of the absence of a father figure, my mother took care of everything. The finances she took care of from me growing up is what amazes me the most. I think of all of these times and it makes me realize things. A woman can do what really she sets her mind too. Although my mom was raising me on her own with a job, or sometimes two on hand, I was raised right. Financially, she made sure I always had enough of everything; clothes, food and entertainment. We lived in houses that could fit inside other houses, and in places that were only guest houses to the owners. Because of the low income life I lived before my adopted dad came along, its taught me to save. Saving is important and furthering my education is important. A college fund was never planned as I was younger, but my parents to this day assure me college will never be something I m deprived of. After my mom married, three little girls were soon to be named my little sisters. With a current five year old, two year old and one year old, budget is tight. Timing could have been better, but I know if I work hard and apply all the skills my mom learned and taught me when I was younger, I ll work and work to pay off every loan and bill I owe for furthering my education. I plan to pay back my parents for all they ve done for me as I was growing up, and giving back to my mother forShow MoreRelatedReview Of The Other Wes Moore 1038 Words   |  5 Pagesthe people closest to you and the bonds you share with them. This can be seen throughout the story such in the lives they lived and the results that followed their actions. At first, Wes A lost his fathers in the same day and his mother couldn’t handle the death of her husband so they moved in with her parents. As Wes A realized that the rules were stricter, he made some friends outside of the house and slowly he joined an unbreakable group of friends; one that had both its good sides and its badRead MoreAn Unbreakable Bond From The Day I Was Born1661 Words   |  7 PagesMom and Me My mom and I had an unbreakable bond from the day I was born. For starters, her and I were alone. Me, a new born, and a 19 year-old graduate, beginning a new life. Although she was a single mother, we had an amazing amount of support from family. I grew up surrounded by three loving uncles and two magnificent grandparents. So, technically, we weren t â€Å"alone.† But in many ways, it was just her and I, which made us have a relationship many people can t say they have with their mom, andRead MoreLifespan Reflection Paper865 Words   |  4 Pageschildhood, underlie human behavior. I will be analyzing my development through the psychoanalytic theory. 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The ideal of what a traditional family entails have changed since the last few decades. What happened to the family structure? Where did traditions go? How does television impact the family structure? Due to societal changes, the impact of divorceRead MoreI Had A Good Life1474 Words   |  6 PagesYou know I have had a pretty darn good life my friend. I have met some great people, I married the love of my life, had two wonderful children with her, traveled the world and accomplished most of my goals. I wasn’t born poor but I wasn’t raised with a silver spoon in my life either. There was always food in the table thanks to my hard working father. I had everything I needed when I was a kid and my parents made sure of it. See I was born in the United States but my parents and I lived in MexicoRead MoreA Small Town About Twenty Miles Out Of San Fran cisco2267 Words   |  10 Pagesnamed Megan. Megan was just an ordinary 16-year-old. She was the only child of Debby and Max Watson. 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Shawshank Film Critque - 1485 Words

The Shawshank Redemption Film Critique The Shawshank Redemption is a brilliant story set in the brutal life of Shawshank Penitentiary. The movie has a very well structured plot; there is a clear beginning, middle, and end—Act I, Act II, and Act III – which all come together as a whole to make a great film. In the movie, a young banker, Andy, is convicted of murdering his wife and her lover and is sentenced to Shawshank Penitentiary. In prison, Andy meets and forms a strong bond with another convicted killer, Red; the narrator of the story. Red plays an important role in the prison; he can deliver contraband of almost any type into the prison. This makes him a vital man within the prisons social structure and it is also the reason that he†¦show more content†¦The warden of Shawshank, Norton, also realizes that a man of Andys skills is useful. Norton is doing some sort of scam and asks Andy for his help there as well. One day, Andy hears from another prisoner, Tommy, whose former cellmate had bragged about killing a rich golfer and a lawyers wife, and framing the lawyer for the crime. Upon hearing Tommys tale, Andy realizes that if this evidence could be brought before a court, he could be given a new trial and a chance at freedom. Norton mocks at the story, however, and as soon as possible he makes sure Tommy pays for his actions. Andy is too constructive and helpful to the warden to be allowed to go free; furthermore, he knows every element about Nortons corrupt dealings. After losing his temper with the warden over the issue, and spending a couple of months in solitary as a result, Andy convince himself that he will never be set free legally. After many years in prison, Andy shares information with Red about a mystery secret hidden behind a rock wall, describing exactly how to find the place and how one day a false identity—Peter Stevens— will own a small seaside resort hotel in Mexico. Andy also tells Red that he could use a man who knows how to get things. Red , confused about why Andy has confided this information in him, reflects on Andys continued ability to surprise. So much of the details are important in the

Banking Essay Example For Students

Banking Essay BankingSo Much for That Plan More than 70% of commercial bank assets are held by organizations that aresupervised by at least two federal agencies; almost half attract the attentionof three or four. Banks devote on average about 14% of their non-interestexpense to complying with rules (Anonymous 88). A fool can see thatgovernment waste has struck again. This tangled mess of regulation, amongother things, increases costs and diffuses accountability for policy actionsgone awry. The most effective remedy to correct this problem would be toconsolidate most of the supervisory responsibilities of the regulatory agenciesinto one agency. This would reduce costs to both the government and thebanks, and would allow the parts of the agencies not consolidated toconcentrate on their primary tasks. One such plan was introduced byTreasury Secretary Lloyd Bentsen in March of 1994. The plan called forfolding, into a new independent federal agency (called the BankingCommission), the regulatory portion s of the Office of the Comptroller of theCurrency (OCC), the Federal Reserve Board, the Federal Deposit InsuranceCorporation (FDIC), and the Office of Thrift Supervision (OTS). This planwould save the government $150 to $200 million a year. This would also allowthe FDIC to concentrate on deposit insurance and the Fed to concentrate onmonetary policy (Anonymous 88). Of course this is Washington, not TheLand of Oz, so everyone cant be satisfied with this plan. Fed Chairman AlanGreenspan and FDIC Chairman Ricki R. Tigert have been vocal opponents ofthe plan. Greenspan has four major complaints about the plan. First, divorcedfrom the banks, the Fed would find it harder to forestall and deal withfinancial crises. Second, monetary policy would suffer because the Fed wouldhave less access to review the banks. Thirdly, a supervisor with nomacroeconomic concerns might be too inclined to discourage banks fromtaking risks, slowing the economy down. Lastly, creating a single regulatorwould do a way with important checks and balances, in the process damagingstate bank regulation (Anonymous 88). To answer these criticisms it isnecessary to make clear what the Feds job is. The Fed has three mainresponsibilities: to ensure financial stability, to implement monetary policy, andto oversee a smoothly functioning payments system (delivering checks andtransferring funds) (Syron 3). The responsibilities of the Fed are linked to thebanking system. For the Fed to carry out its job it must have detailedknowledge of the working of banks and financial markets. Central banksknow from the experience of financial crises that regulatory and monetarypolicy directly influence each other. For example, a banking crises can disturbmonetary policy, discouraging lending and destroying consumer confidence,they can also disrupt the ability to make or receive payments by check or totransfer funds. It is for these reasons that it is argued that the Fed mustmaintain a regulatory role with banks. The Tre asury plan would leave the Fedsome access to the review of banks. The Fed, which lends through itsdiscount window and operates an interbank money transfer system, wouldhave full access to bank examination data. Because regulatory policy affectsmonetary policy and systemic risk, it is necessary that the Fed have at leastsome jurisdiction. The Fed must be able to effectively deal with current policyconcerns. The Banking Commission would be mainly concerned with thesafety and stability of the banks. This would encourage conservativeregulations, and could inhibit economic growth. The Fed clearly has a handson knowledge of the banking system. The common indicators of monetarypolicy the monetary aggregates, the federal funds rate, and the growth ofloans are all influenced by bank behavior and bank regulation. .ueb28bff2f50a80574964639c5e6a8305 , .ueb28bff2f50a80574964639c5e6a8305 .postImageUrl , .ueb28bff2f50a80574964639c5e6a8305 .centered-text-area { min-height: 80px; position: relative; } .ueb28bff2f50a80574964639c5e6a8305 , .ueb28bff2f50a80574964639c5e6a8305:hover , .ueb28bff2f50a80574964639c5e6a8305:visited , .ueb28bff2f50a80574964639c5e6a8305:active { border:0!important; } .ueb28bff2f50a80574964639c5e6a8305 .clearfix:after { content: ""; display: table; clear: both; } .ueb28bff2f50a80574964639c5e6a8305 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ueb28bff2f50a80574964639c5e6a8305:active , .ueb28bff2f50a80574964639c5e6a8305:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ueb28bff2f50a80574964639c5e6a8305 .centered-text-area { width: 100%; position: relative ; } .ueb28bff2f50a80574964639c5e6a8305 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ueb28bff2f50a80574964639c5e6a8305 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ueb28bff2f50a80574964639c5e6a8305 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ueb28bff2f50a80574964639c5e6a8305:hover .ctaButton { background-color: #34495E!important; } .ueb28bff2f50a80574964639c5e6a8305 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ueb28bff2f50a80574964639c5e6a8305 .ueb28bff2f50a80574964639c5e6a8305-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ueb28bff2f50a80574964639c5e6a8305:after { content: ""; display: block; clear: both; } READ: Women Who Changed The World: Rosa Parks Essay We will write a custom essay on Banking specifically for you for only $16.38 $13.9/page Order now Understanding changes and taking action in a timely fashion can be achievedonly by maintaining contact with examiners who are directly monitoringbanks (Syron 7). The banking system is what ultimately determines monetarypolicy. It is only common sense to have personnel in the Fed that have abetter understanding of the system other than just through financialstatements and examination reports. The Fed also needs the authority tochange bank behavior that is inconsistent with its established monetary policyand with financial stability. This requires both the responsibility for writing theregulations and the responsibility for enforcing those regulations through banksupervision. State banking charters have already started to be affected. Under the proposed plan, state chartered banks would be subject to tworegulators. While the federal bank would have only one. Thus, making thestate bank charter less attractive. However, an increasing number of banksare opting for state supervision. It turns out that many banks are afraid oflosing existing freedoms, or of failing to gain new ones, if supervision iscentralized. State regulators have given their banks more freedom thanfederal ones: 17 now permit banks to sell insurance (and five to underwrite it,23 allow them to operate discount stockbrokers and a handful even let themrun estate agencies (Anonymous 91). The FDIC has two main criticisms ofthe Treasurys plan. First, FDIC Chairman Tigert believes that it is veryimportant that there be checks and balances in the system going forward(Cocheo 43). Second, Tigert believes that, since the FDIC is the one whowrites the checks for bank failures, the FDIC should be allowed to keep itsindependence. It is necessary to maintain the c hecks and balances ofdifferent agencies. This separation is necessary because of the differences inexaminations of the different regulatory agencies with respect to the sameinstitutions. It is important that the independent deposit insurer have accessto information thats available not only through reporting requirements, butalso through on-site examinations (Cocheo 43). Tigert explains that the FDICmust keep backup examination authority. As well as maintain the ability toconduct on-site examinations of all institutions it insures, not just thestate-chartered nonmember banks it supervises directly. She agrees withthose who say there is no need for duplicative examinations, but insists FDICmust be able to look at institutions whose condition or activities have changeddrastically enough to be of concern to the insurer. While consolidation of thebank supervisory process is overdue, issues of bank supervision andregulation affect the entire economy. There is no way to tell what is in sto refor banking regulation in the future. It is known, however, that we mustbeware that all the regulatory agencies in place now, are in place for areason. Careful thought and debate must be undertaken before any reform ismade. In the end, Americans seem no more inclined to tolerate concentrationamong regulators than they are among banks. BibliographyAnonymous. American Bank Regulation: Four Into One Can Go. TheEconomist 330 (March 5, 1994): 88-91. Cocheo, Steve. Declaration of Independence. ABA Banking Journal 87(February 1995): 43-48. Syron, Richard F. The Fed Must Continue to Supervise Banks. NewEngland Economic Review (January/February 1994): 3-8. Works ConsultedAnonymous. Banking Bill Spells Regulatory Relief. Savings CommunityBanker 3 (September 1994): 8-9. Broaddus, J. Alfred Jr. Choices in Banking Policy. Economic Quarterly(Federal Reserve Bank of Richmond) 80 (Spring 1994): 1-9. Reinicke, Wolfgang H. Consolidation of Federal Bank Regulation?Challenge 37 (May/June 1994): 23-29.