Question

the conditional relative frequency table was generated using data that compared a students grade level and whether or not they are involved in after - school activities. given that a student is in 10th grade, what is the probability that the student is also not involved in after - school activities?

	after - school activities	no after - school activities	total
11th grade	0.55	0.45	1.0
total	0.49	0.51	1.0

0.43
0.45
0.55
0.57

Explanation:

Step1: Identify relevant data

We look at the row for 10th - grade in the conditional - relative frequency table.

Step2: Find probability value

The value corresponding to "No After - School Activities" in the 10th - grade row is 0.57.

Answer:

0.57