Question

Use the stem-and-leaf plot below to find the mean, median, and mode of the data set. Round to the nearest whole
number
Stem Leaf
5 2, 2, 2.
8. 1,5,9
9. 3,4,6
1. 2,7

Answer 1

Answer:

The mean is 65.72 , median  is 81 and mode is 52  

Step-by-step explanation:

Stem         Leaf

5                2, 2, 2.

8.                1,5,9

9.                3,4,6

1.                 2,7

Number : 52,52,52,81,85,89,93,94,96,12,17

Arrange in ascending order :

12,17,52,52,52,81,85,89,93,94,96

$Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\Mean =\frac{12+17+52+52+52+81+85+89+93+94+96}{11}$

Mean =65.72

$Median = \frac{n+1}{2} \text{th term}=\frac{11+1}{2}=6 \text{th term} = 81$

Mode = most occurring number = 52

Hence The mean is 65.72 , median  is 81 and mode is 52