Question

for a certain class, the following data table compares how many students passed a test and whether or not they completed the homework due the day of the test. what is the probability that a student chosen randomly from the class failed the test?

	passed the test	failed the test
did not complete the homework	2	3

Explanation:

Step1: Calculate total failed students

$4 + 3 = 7$

Step2: Calculate total students

$21 + 4 + 2 + 3 = 30$

Step3: Compute probability

$\frac{\text{Total failed}}{\text{Total students}} = \frac{7}{30}$

Answer:

$\frac{7}{30}$