Math 116 Essay - 1178 Words

Math 116 - Chapter 6 review Name___________________________________ Provide an appropriate response. 1) Two random variables are normally distributed with the same mean. One has a standard deviation of 10 while the other has a standard deviation of 15. How will the graphs of the two variables differ and how will they be alike? 2) Which is larger, the area under the standard normal curve between -1 and 1, or the area under the standard normal curve between 0 and 2? Explain your reasoning. 3) Which of the variables below do you think will be roughly normally distributed? a. Weights of 10 year old boys b. Incomes of 40 year old adults c. The numbers that show up when you roll a balanced die d. The amount of coffee†¦show more content†¦You wish to approximate a binomial probability by an area under a normal curve. Use the continuity correction to determine which area under the appropriate normal curve will approximate the required probability. 18) The probability of more than 49 correct answers 19) The probability of fewer than 48 democrats For the binomial distribution with the given values for n and p, state whether or not it is suitable to use the normal distribution as an approximation. 20) n = 27 and p = 0.6 21) n = 19 and p = 0.8 Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution. 22) Estimate the probability of getting exactly 43 boys in 90 births. 23) A certain question on a test is answered correctly by 22% of the respondents. Estimate the probability that among the next 150 responses there will be at most 40 correct answers. Provide an appropriate response. 24) Fill in the blanks. A fair coin is flipped 280 times. You wish to find the probability that the number of tails is greater than 160. This probability can be estimated by finding the area to the right of _____ under the normal curve with ÃŽ ¼ = ____ and ÏÆ' = ___. 1) Both graphs will have the same shape (they will both be bell-shaped) and they will be centered at the same place (the common mean). The graph of the variable with the smaller standard deviation will be narrower and taller than the other graph.Show MoreRelatedImportance Of UNC Chapel Hill747 Words   |  3 Pages- PSYC 210 - PSYC 270 - PSYC 222 - PSYC 230 - PSYC 245 - PSYC 260 - PSYC 433 - PSYC 504 - PSYC 395 - BIOL 101 - BIOL 101L - CHEM 101 - CHEM 101L - COMP 101 - COMP 110 - COMP 116 - MATH 130 - MATH 152 - MATH 231 - MATH 242 - ASTR 101 However, I’m not sure completely sure of all of the courses we take and RCEC but, surely, some of them are covered at RCEC. The courses I take in the following years I have at RCEC will determine my scheduleRead MoreGraduation Speech : School Rules1640 Words   |  7 PagesI attended Cook Elementary for my fifteen hours of observation. The classroom lighting was dim and not too bright. As I entered classroom 114-116 there was a achievement board to my left displaying the students’ successful and accurate complete classroom and homework assignments. And on my right there was a chalkboard filled with so much information that it was overwhelming to me eye. The chalkboard was divide up into several section. The information on the chalkboard varied from very important toRead MoreElementary Algebra and Study Plan2894 Words   |  12 PagesCourse Syllabus MAT/116 Version 8 1 Course Syllabus Natasha Ramsay-Jordan College of Natural Sciences MAT/116 Version 8 Algebra 1A Copyright  © 2012, 2010, 2009, 2007, 2006 by University of Phoenix. All rights reserved. Course Description This course introduces basic algebra concepts and assists in building skills for performing specific mathematical operations and problem solving. Students will solve equations, evaluate algebraic expressions, solve and graph linear equations and linear inequalitiesRead MoreSonnet 116 Love Essay1167 Words   |  5 Pageswhich it takes differs across various sonnets. In sonnet 116, Shakespeare lavishes the reader with beautiful imagery of love in its most idyllic form. On the other hand, in sonnet 130, he adopts a more realistic approach to love as it is experienced by everyday people. In both cases, the poet is able to artfully convey the theme of love in its various forms such that the reader is able to easily recognize and identify with it. Sonnet 116 depicts love in its ideal form. The poet discusses how marriageRead MoreMy Experience At Oasis Tutoring Center Essay938 Words   |  4 Pagesother two boys read to themselves. He was good at reading, math and science. He just needed to get extra attention from me to be able to want to work on school stuff. He would come in and tell me about his day or show me he made a good grade on a test. In our textbook, Educational Psychology, it talks about behavioral theories. This theory is shown when he would show me a good grade on a test, I would reward him with praise. He did a complex math problem and I rewarded him with praise. He realized whenRead MoreThe Importance Of Technology, The Future Of Education985 Words   |  4 Pagesbring exciting learning opportunities for children† (Bergen, 1999, p.116). A skill that a teacher must have is that they have a love for learning and by that they should learn from their students as well. Bergen then says how she thought it â⠂¬Å"would be useful to look at technology in teaching from the perspective of an â€Å"expert† the kind of expert whom teachers encounter daily in their classrooms: their student† (Bergen, 1999, p.116). This is such a great experience for teachers because their studentsRead MoreF. Skinner s Operant Conditioning Theory1356 Words   |  6 Pagesapproach controlled behavior. B. F. Skinner s operant conditioning approach includes but is not limited to shaping, reinforcements, and punishments. One subject that is intertwined in all areas of study and everyday life is mathematics. Often times, math is one of the hardest concepts for people to grasp. In regards to B. F. Skinner s operant conditioning theory, mathematics can be learned in the classroom through shaping, reinforcement, and punishment. Shaping is primarily used to train animalsRead MoreHow Does The Gender Of The Teacher Affect Learning?873 Words   |  4 Pagesand students’ engagement in the material being taught ( In a study conducted of 1,799,243 ACT-tested students more astonishing data was found that confirms the teacher gender theory.1 On average females had a higher Grade Point Average in English, Math, Social Science and Science as well as an overall GPA (Buddin, 2013). However grades are not given out by who is the smartest; attendance, homework, participation and behavior are all factors of many high school classrooms. So if a male student hasRead MoreSingle Sex Schools : Primary Schools946 Words   |  4 Pagestogether and most public schools converted to being co-ed. Now in the twenty-first century co-ed school dominate the U.S. but single-sex schools are around, most of them being private. In the United States 506 public schools offer single-sex classes; 116 of those 506 schools participate i n activities that is all one sex, but 5 of those schools are not considered single-sex schools. Psychologists have once tested the learning differences between male and female and it is proven that they do learn inRead MoreEssay about High Stakes Testing1323 Words   |  6 Pages1998a)(http://books.nap.edu/books/0309062802/html/116.html). High stakes testing also improves students’ achievement. Eugene Watts, Ohio’s State Senator, discusses a new exam that will be required for high school graduation starting in September of 2004. â€Å"It is a tribute to the process we have established that Ohio was one of only three states to receive a grade of A by the Fordman Foundation in its appraisal of math standards in 1998. Ohio’s model math standards also have the highest rating by the