Question

3. Which of the following pairs of class limits would be appropriate for grouping the numbers 12, 15, 10, and 17 ?
a. 9-13 and 13-17
b. 10-12 and 15-17
c. 10-12 and 13-17
d. 10-13 and 14-17

Answer 1

the last one... each class has a width of 4

a has overlapping data, 13 is in both

b misses scores of 13 or 14

c the class width is uneven