Question

here are the ages (in years) of 10 professors at a college. 47, 44, 48, 43, 35, 65, 56, 37, 73, 51 what is the percentage of these professors who are younger than 47?

Explanation:

Step1: Count number of professors younger than 47

There are 4 professors (44, 43, 35, 37) younger than 47 among 10 professors.

Step2: Calculate the percentage

The formula for percentage is $\frac{\text{Number of favorable cases}}{\text{Total number of cases}}\times100\%$. So the percentage is $\frac{4}{10}\times100\% = 40\%$.

Answer:

40%