A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately Assume that it is reasonable to regard the teen drivers in this study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Male Female Driver Driver 1.2 -0.1 1.4 0.4 0.9 1.1 2.1 0.7 0.7 1.1 1.3 1.2 3 0.1 1.3 0.9 0.6 mile from the school. 2 2.1 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use μmales Mfemales. Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t = df = P = (b) Do these data provide convincing support for the claim that, on average, male teenage drivers exceed the speed limit by more than do female teenage drivers? Yes No

Nlustration 25. Calculate mode from the following data: 50–70 Klarks 0-10 20-40 40–50 10–20 Frequency 32 28 5 15 40

Chrome File DO → C Gmail Edit Home - myRCC View ! 7 History Q Male mylearning.suny.edu/d21/le/content/920969/viewContent/25846500/View Female Bookmarks Giving a test to a group of students, the grades and gender are summarized below A X 6 12 B.2 HW-23FA STATISTICS (81 X B C 2 13 7 15 Total 19 19 25 Profiles Tab Window Help 10 3 If one student is chosen at random, Submit Question Find the probability that the student was female: Total # 28 Find the probability that the student was male AND got a "B": 3 Find the probability that the student was female OR got an "C": 35 If one student is chosen at random, find the probability that the student was male GIVEN they got a 'C': 63 E + $ 4 R % 5 6 SEP 25 Y ∞ Ka 8

Fit the regression line X1 3 5 6 8 12 14 X2 16 10 7 4 3 2

What is P(C and Z)?

Dest.->> Sources! 1 2 3 Demand Find 6 1 10 15. 2 4 7 11 17 3 Supply 3 2 15 28 supply

3. Caloulate r and ŕ for the data set. -5 -4 -3 -2 -10 1. 4. 9. Calculate r. (Round to four decimal places as needed.) Calculate r =(Round to four decimal places as needed.)

Example 2.3: Let x-{a-1/2, b-1/4 ,c-1/8, d-1/8}, find the average of information?