Exercise 1 twenty-five randomly selected students were asked the number of movies they watched the previous week. the results are as follows: # of movies frequency relative frequency cumulative relative frequency 0 5 1 9 2 6 3 4 4 1 table 1.1 (hint: this is a frequency table. read the section in the textbook! ) a. find the sample mean x b. find the sample standard deviation, s c. complete the columns of the chart. d. find the first quartile. e. find the median. of. find the third quartile. g. what percent of the students saw fewer than three movies