danswer the question below

12 13. 14. 15. Amount of time spent by a sample of 70 customers at a grocery shop are summarized in the following relative frequency distribution. Relative fre- uen 0 u- to 10 10 u- to 20 20 u- to 30 30 u- to 40 Which of the following class interval will the median amount of time fall in? A. 0 up to 10 B. 10 up to 20 C. 20 up to 30 D. 30 up to 40 You purchase 30 stocks of Company A, 25 stocks of Company B, and 45 stocks of Company C. The annual returns of these companies are 14%, 6%, and 10% respectively. Calculate the average return for one year of these stocks. A. 0.1 B. 0.2 C. 0.3 D. 0.4 The following data represents the actual data usage, in gigabytes, for 11 Netix subscribers. 23.4 18.9 11.3 10.5 9.7 15.6 17.2 21.9 18.1 10.6 14.6 Calculate the 60th percentile of this data set. A. 13.42 B. 16.56 C. 17.38 D. 18.14 Which of the following is TRUE about constructing a boxplot? A. The five-number summary values are plotted in descending order on the horizontal axis. B. A clashed vertical line in the box represents the mean. C. A line (whisker) is drawn from Q1 to maximum data value and from Q3 to minimum data value. D. If the median is left of center and the right whisker is longer than the left whisker, then the distribution is positively skewed