2. Consider the two-way table specifying ice cream flavors by gender. Which of the following is the expression to calculate the expected number of males who prefer chocolate? Gender Totals Male Female Favorite Flavor Chocolate 32 16 48 Vanilla 14 4 18 Other 3. 10 13 Totals 49 30 79 a. (32)(49)/(79) b. (32)(48)/(79) C. (32)(79)/(49) d. (48)(49)/(79) e. (48)(30)/(79)

A boxplot for a set of 32 scores is given below. How many scores are represented in the blue section of the boxplot?

! 7 ALEKS → * L Q A Knowledge Check N Fuel efficiency (miles per gallon) 1/5 2 377 3 0125779 4 19 5 0369 The stem-and-leaf display below gives the fuel efficiencies (in miles per gallon) for a sample of 17 new cars. Use the display to answer the questions that follow. Key: 115 means a fuel efficiency of 15 miles per gallon. I Don't Know (a) What is the lowest fuel efficiency in the sample overall? (b) What is the highest fuel efficiency in the 20s? (c) How many cars in the sample have fuel efficiencies in the 50s? 2 W S Submit X H command #3 E D $ 4 C R F X 07 dº % 5 V T S G U Question 8 MacBook Pro > 6 Y B V lº & 7 H U N * 00 8 J ( 9 K M Chinedu Jer... L L H P Español V > commane

A recent study investigated whether renowned violinists were able to classify the age of a violin. In the study, violins constructed before 1900 and violins constructed after 2010 were used. The violinists played each violin and were asked to classify the violin as old (constructed before 1900) or new (constructed after 2010). The responses are shown in the following table. Violin Correctly Classified Incorrectly Classified Total New (constructed after 2010) 15 18 33 Old (constructed before 1900) 18 13 31 Total 33 31 64 Which of the following statements is supported by the results in the table? A.) The proportion of all new violins that are correctly classified is equal to the proportion of all old violins that are correctly classified. B.) The proportion of all new violins that are incorrectly classified is equal to the proportion of all old violins that are correctly classified. C.) The proportion of all incorrectly classified violins that are old is equal to the…

38

Solve it on the paper.

What conclusions do you reach from this chart? A. There is an approximately equal percentage of males and females who enjoy shopping for clothing. B. There is a higher percentage of males who enjoy shopping for clothing. C. There is a higher percentage of females who enjoy shopping for clothing. D. The side-by-side bar chart is inconclusive. O A. Yes- No- 0. 100 200 300 400 Frequency Male C Female

explain simply

A group of 175 college students who took math last term were interviewed. They were asked whether they passed their math course and whether they live on campus. Their responses are summarized in the following table. Passed math Failed math Live on campus 49 21 Live off campus 28 77 ? |(a) What percentage of the students passed math? 1% |(b) What percentage of the students live on campus? % |(c) What percentage of the students who live on campus passed math? [% |(d) Is there evidence that students who live on campus tend to pass math more often than average? O No, because the percentage found in part (c) is about the same as the percentage found in part (a). O No, because the percentage found in part (c) is about the same as the percentage found in part (b). O Yes, because the percentage found in part (c) is much greater than the percentage found in part (a). O Yes, because the percentage found in part (c) is much greater than the percentage found in part (b).