Grade 10-12
Height Range 55-59 60-64 65-69 70-74
Frequency 4 9 8 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)
Responses
The frequencies for the first and last height range are the same.
The frequencies for the first and last height range are the same.
The frequencies for each height range are different.
The frequencies for each height range are different.
When graphed, the data creates a straight line.
When graphed, the data creates a straight line.
When graphed, the data creates a bell curve.
1 answer
The correct response is:
When graphed, the data creates a bell curve.
In a normal distribution, the frequencies of the data tend to form a bell-shaped curve when plotted, with most values clustering around the mean and fewer values appearing as you move away from the mean in either direction.
