Question

O DATA ANALYSIS AND STATISTICS Mean of a data set Each of 5 students reported the number of movies they saw in the past year. Here is what they reported. 20, 20, 11, 9, 18 Find the mean number of movies hat the students saw. If necessary, round your answer to the nearest tenth. movies X Ś ?

Answer 1

15.6 movies

Step-by-step explanation:

The given data is

20, 20, 11, 9, 18

The mean of these values is equal to the sum of these values divided by the number of values, so

`\begin{gathered} \text{ mean = }(20+20+11+9+18)/(5) \\ \\ \text{ mean =}(78)/(5) \\ \\ \text{ mean = 15.6} \end{gathered}`

So, the mean is 15.6 movies