Question

Study the following histogram and find the error in the histograms plotted for different intervals.

• A. The first interval of the data set is incorrect.
• B. The range of the third interval of the data set is incorrect.
• C. The frequency of the third interval is incorrect.
• D. The fourth interval of the data set is incorrect.

Answer 1

The correct option is B The range of the third interval of the data set is incorrect.

Total range = 40
The range is divided into 5 intervals.
Therefore, each interval will have a range of 10.
So, the ranges are: 11–20, 21–30, 31–40 , and 41–50
The range for the third interval is incorrect as it should be 31 - 40 and not 30 - 40 as mentioned in the histogram.