The marks obtained (out of20 ) by30students of a class in a test are given below:
Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is (including and excluding ). From the frequency distribution table so obtained, draw a histogram.

Intervals
Frequency

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Detailed Solution

The marks obtained (out of 20) by 30 students of a class in a test are given below.
We are given marks of

students. Make the intervals of the same width and count the number of students in a particular interval according to the marks distribution for the frequency table of the marks obtained by the students.

Intervals	Frequency

Hence, the frequency table shows the count of the number of students in each class interval of the marks obtained by the students of a class.
Now draw the histogram of the frequency distribution table listed above: