Question

each of 5 students reported the number of movies they saw in the past year. here 14, 10, 8, 7, 4 find the mean number of movies that the students saw. if necessary, round your answer to the nearest tenth.

Explanation:

Step1: Sum the data values

We need to add up all the numbers of movies: \(14 + 10 + 8 + 7 + 4\). Calculating that, we get \(14+10 = 24\), \(24 + 8 = 32\), \(32 + 7 = 39\), \(39 + 4 = 43\). So the sum is \(43\).

Step2: Divide by the number of data points

There are 5 students, so we divide the sum by 5. The formula for the mean \(\bar{x}\) is \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\), where \(n = 5\) and \(\sum_{i=1}^{n}x_{i}=43\). So we calculate \(\frac{43}{5}=8.6\).

Answer:

\(8.6\)