Question

a group of 6 students was asked, \how many hours did you watch television last week?\ here are their responses. 9, 4, 9, 11, 8, 12 find the mean number of hours for these students. if necessary, round your answer to the nearest tenth.

Explanation:

Step1: Calculate sum of data

$9 + 4+9 + 11+8 + 12=53$

Step2: Divide by number of data points

The number of students (data - points) is $n = 6$. The mean $\bar{x}=\frac{53}{6}\approx8.833\cdots$

Step3: Round to nearest tenth

Rounding $8.833\cdots$ to the nearest tenth gives $8.8$

Answer:

$8.8$