Question

What is the row conditional relative frequency for males who play basketball?

Answer 1

we know that

To obtain a conditional relative frequency, divide a joint frequency (count inside the table) by a marginal frequency total (outer edge) that represents the condition being investigated

so

In this problem

the row conditional relative frequency for males who play basketball is

15/31

15 is the total male that play basketball

and 31 is the total male and female that play basketball

so

the ratio is the conditional relative frequency