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Finding mean, median, mode, box plot and histogram

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Here are ages of students in a class: 22, 20, 35, 18, 23, 31, 29, 36, 21, 18, 28, 18.
a. Find the mean of the data.
b. Find the standard deviation of the data.
c. Find the median of the data.
d. Find the mode of the data.
e. Find the first quartile of the data.
f. Draw the boxplot of the data.
g. Draw a histogram of the data, using three classes of width 7

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Solution Summary

This solution shows how to find mean, median, mode and first quartile of the given data. It also includes box plot and histogram of the data.

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Here are ages of students in a class: 22, 20, 35, 18, 23, 31, 29, 36, 21, 18, 28, 18.
a. Find the mean of the data.
Mean = (22 + 20+35 +18+23+31+29+36+21+18+28+18)/12 = 24.91667

b. Find the standard deviation of the data. ...

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Sandhya Sharma, MSc
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  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
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