22. A physical education teacher recorded the distances, in inches, that her students jumped during a long jump lesson. The distances of 1 jump by each of the students are represented in the stem-and-leaf plot below.
What is the probability that a student chosen at random from the class will have jumped at least 60 inches?
Your Answer is
Correct Answer is K
Explanation
According to the known stem-leaf diagram, there are a total of 8 data of at least 60 feet: 60, 61, 62, 63, 66, 70, 71, 72, a total of 19 data, so pick at least 60 feet The probability is 8/19