Question

In a class of students, the following data table summarizes how many students passed a test and complete the homework due the day of the test. What is the probability that a student chosen randomly from the class completed the homework?

Answer 1

5/7

Explanation:

From the table below:

• The number of students that ,completed the homework, = 10+5 = 15

,

• The ,total, number of students in the class = 10+5+2+4=21

Therefore, the probability that a student chosen randomly from the class completed the homework:

`\begin{gathered} P(\text{completed homework)=}\frac{\text{Number that completed homework}}{\text{Total}} \\ =(15)/(21) \\ =(5)/(7) \end{gathered}`

The answer is 5/7.