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The marks obtained (out of 20) by 30 stu...

The marks obtained (out of 20) by 30 students ofa class in a test are given below:
7,10,8,16,13,14,15,11,18,11,15,10,7,14,20,19,15,16,14,20,10,11,14,17,13,12,15,14,16,17.Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 3 - 8 (excluding 8 and including 4).​From the freequency distribution table so obtained draw a histogram

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