question archive You may write your responses on these pages if you'd like
You may write your responses on these pages if you'd like
Subject:StatisticsPrice: Bought3
You may write your responses on these pages if you'd like. Problem Set #2 1) More summaries. Here an: the annual numbers of 2) Standard deviation. For each lettered part,a through c, deaths from tomadoes in the United States from 1990 examine the two given sets of numbers. Without doing through 2000. (Source: NCAA) any calculations, decide which set has the larger stan- dard deviation and explain why. Then check by ?nding 53 39 39 33 69 30 25 67 130 94 4D the standard deviations by hand. Find these statistic by hand (no calculated): a) mean Set 1 Set 2 13) median and quartiles a) 3, 5, 6, '7, 9 2, 4., 6, 8, 10 C) ""5" and 1Q" b) 10, 14, 15, 16, 20 10,11,15, 19, 20
3) Wayne Gretzky. In Chapter 4 (Exercise 12) you exam- 4) Home runs. In 1961 Roger Maris made baseball head- ined the number of games played by hockey great Wayne lines by hitting 61 home runs, breaking a famous record Gretzky during his 20-year career in the NHL. Here is the held by Babe Ruth. Here are Maris's home run totals for stem-and-leaf display: his 10 seasons in the American League. Would you con- sider his record-setting year to be an outlier? Explain. |000000122 8, 13, 14, 16, 23, 26, 28, 33, 39, 61 8899 0344 [Use the outlier calculation from the reading section.] 6 4 58 Games Played (4 | 5 = 45 games) a) Would you use the median or the mean to describe the center of this distribution? Why? b) Find the median. c) Without actually finding the mean, would you expect it to be higher or lower than the median? Explain.
