The temperatures, in degrees Fahrenheit, at noon for the past four days were 58, 56, 44, and 58. The mean, median, and mode were calculated for these four values. The next day, the temperature, at noon, was 57 degrees Fahrenheit. Which statement best describes the change to the mean, median, and mode of the data after 57 was added to the list? Select one: The median was the only measure that changed. The mean was the only measure that changed. The mean and the median changed, but not the mode. The median and the mode changed, but not the mean.

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?