Question

Can someone help me ​

Answer 1

Explanation:

A.fill the box as follows.

tally (remember to cross every 5)

20-29- IIIII

30-39-IIIIIII

40-49-IIIIIIIIIIIIIIIII

50-59-I

frequency-

20-29- 5

30-39- 7

40-49- 17

50-59- 1

B.Most common group is 40-49

C. range= 53-20=23 so it is 23.