Question

What is the median of the ages in this stem-and-leaf plot?

43

45

46

47

Answer 1

The answer is 45 because 45 is in the middle

Answer 2

B. 45

Explanation:

We have been given a stem and leaf plot and we are asked to find the median age for our given plot.

We can represent the data provided by stem and box plot as:

22, 23, 29, 31, 34, 36, 38, 40, 43, 45, 47, 48, 49, 53, 57, 58, 62, 63, 65.

`\text{Median}=(n+1)/(2)`

We can see that our data set has 19 data points, so median age will be:

`\text{Median}=(19+1)/(2)`

`\text{Median}=10`

We can see that 10th data point of our data set is 45, therefore, median age is 45 and option B is the correct choice.