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
When graphed, the data creates a bell curve.
When graphed, the data creates a bell curve.
When graphed, the data creates a straight line.
When graphed, the data creates a straight line.
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.
1 answer
The most appropriate response to the question about how the statistician concluded that the height data is a normal distribution is:
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 graphed, indicating that most of the data points cluster around the mean (average) with symmetrical tails on either side.
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