Question

Select all the correct answers.

Nick wants to know the height of the students in seventh grade. He randomly notes the heights of 5 students from each seventh-grade class. The mean and median heights of the students are 55 inches and 46 inches, respectively. Which predictions match Nick's data?

1About one-half of the students are more than 55 inches tall.
2On average, the students are 46 inches tall.
3On average, the students are 55 inches tall.
4About one-half of the students are more than 46 inches tall.

(there is more than one answer)

Answer 1

Below in bold.

Explanation:

The mean is 55 therefore, by definition:

On average the students are 55 inches tall.

The median is the middle ( or the average of 2 middle) value when the data is arranged in order.

So as the media is 46 inches about half are more than 46 ins tall.