Question

Use the table to answer the following question.

Height Frequency of Students in
Grades 10-12

Grade 10-12

55-
59

4

A statistician collects the following height data in inches for a school district. The statistician says that it is a normal distribution. How did they draw this conclusion?

(1 point)

When graphed, the data creates a straight line.

When graphed, the data creates a bell curve.

O The frequencies for the first and last height range are the same.

O The frequencies for each height range are different.

Height
Range

Frequency

60-
64

65
69

70
74

9

8

4

Answer 1

When graphed, the data creates a bell curve.

The frequencies (4, 9, 8, 4) are roughly symmetric with a peak in the middle, producing a bell-shaped (normal) distribution.