Question

12 the total number of items sold by each student who participated in a fund - raiser is shown in the stem and leaf plot. items sold stem leaf 1 2 5 5 5 8 2 2 2 3 6 7 9 3 0 0 1 1 2 6 4 1 2 8 8 9 9 1|2 means 12 items. which statement is best supported by the data in the stem and leaf plot? a the most common number of items sold is 30. b the most common number of items sold is 15. c the number of students who sold between 10 and 20 items is greater than the number of students who sold more than 40 items. d the number of students who sold more than 30 items is greater than the number of students who sold fewer than 30 items.

Explanation:

Step1: Count the frequency of each value

In the stem - and - leaf plot, for 15, there are 3 occurrences. For 30, there is 1 occurrence.

Step2: Count number of students in different ranges

Number of students who sold between 10 and 20 items: 5 students. Number of students who sold more than 40 items: 5 students. Number of students who sold more than 30 items: 1 + 1+ 1+ 2+ 2 = 7 students. Number of students who sold fewer than 30 items: 4+5 = 9 students.

Answer:

B. The most common number of items sold is 15.