Question

for a certain class, the following data table summarizes the amount of sleep of students and whether or not they have an a in the class. what is the probability that a student chosen randomly from the class slept more than 6 hours?

	slept more than 6 hours	slept 6 hours or less
does not have an a	3	15

Explanation:

Step1: Calculate total number of students

$5 + 6+3 + 15=29$

Step2: Calculate number of students who slept more than 6 hours

$5 + 3=8$

Step3: Calculate the probability

The probability $P$ is the number of students who slept more than 6 hours divided by the total number of students. So $P=\frac{8}{29}$

Answer:

$\frac{8}{29}$