Question

find the mean

nine patients were interviewed as to the number of days they were hospitalized with the flu. the results were 1, 1, 1, 2, 3, 3, 3, 4, 4.

what is the mean of the data set? round your answer to the nearest tenth.

Explanation:

Step1: Calculate sum of data

$1 + 1+1 + 2+3 + 3+3 + 4+4=22$

Step2: Divide by number of data points

The number of data - points $n = 9$. The mean $\bar{x}=\frac{22}{9}\approx2.4$

Answer:

$2.4$