Question

use the display of data items to find the mean, median, mode, and mid - range. the mean of the data is □ (round to the nearest tenth as needed.)

Explanation:

Step1: Write out data values

The data values from the stem - and - leaf plot are 40, 44, 48, 60, 64, 64, 62, 96.

Step2: Calculate the sum

$40 + 44+48 + 60+64+64+62+96=478$.

Step3: Calculate the number of data points

There are $n = 8$ data points.

Step4: Calculate the mean

The mean $\bar{x}=\frac{478}{8}=59.75$. Rounding to the nearest tenth, we get 59.8.

Answer:

59.8