Question

The following summarizes the number of fiction books read last summer by a sample of 26 students what is the mean number of books round your answer to the nearest tenth

Answer 1

Multiply each number of students to their respective number of books and then add the products.

`4(2)+9(3)+13(4)=8+27+52=87`

Determine the total number of students by adding the number of students.

`4+9+13=26`

Divide the obtained sum of the products by the total number of students.

`\bar{x}=(87)/(26)\approx3.346\approx3.3`