Question

The table is in the picture.

Answer 1

Relative frequency of those who like football or tennis or both = 12+18+48 = (78) ÷ 12+18+48+22 = (100)
= 78/100

Relative frequency of those who like tennis = 12+18 = (30) ÷ 12+18+48+22 = (100)
=30/100