Question

Which of the following gives the complete stem-and-leaf plot and the mean of the given data?

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

The given data set is

68, 52, 56, 62, 78, 90, 86, 76, 75, 87

Let us plot the given data in the stem-and-leaf plot, we get


Let us find the mean value of the data.

The mean of the data set is the sum of the data divided by the number of data values

Mean = $\frac{sumofalldata}{numberofdata}$

= $\frac{52+56+62+68+75+76+78+86+87+90}{10}$

= $\frac{730}{10}$

= 73

Hence, the mean of the data = 73.

Hence, the option

gives the complete stem-and-leaf plot and the mean value of the given data.