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 each height range are different.
The frequencies for each height range are different.
The frequencies for the first and last height range are the same.
The frequencies for the first and last height range are the same.
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 would be:
When graphed, the data creates a bell curve.
This is because a normal distribution is characterized by a bell-shaped curve when the data is plotted, with most data points clustering around the mean and fewer data points appearing as you move away from the mean in either direction.
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