given-the-following-class-intervals-and-frequencies-10-19-5-20-29-8-30-39-12-40-

Question

Given the following class intervals and frequencies: 10-19 (5), 20-29 (8), 30-39 (12), 40-49 (7), what are the midpoints for the frequency polygon?

Accepted Answer

14.5, 24.5, 34.5, 44.5

Answer

10, 20, 30, 40

Answer

19, 29, 39, 49

Answer

15, 25, 35, 45