Question

find the mode for the following: class 0-20 20-40 40-60 60-80 80-100 frequency:15,18,21,29,17

Answer 1

mode= l+(f1-f0/2f1-f0-f2)×h
= 40+ (21-18/2× 21-18-29)×20
= 28

Answer 2

Answer:

Multiply the frequency and xi for the final fidi ok