Question

the accompanying table pertains to scheduled commercial airline carriers for a certain country. complete parts (a) through (c). click the icon to view the commercial airline carrier data. (a) find the mean number of fatalities. the mean number of fatalities is . (type an integer or decimal rounded to the nearest tenth as needed.) commercial carrier data year departures (in millions) fatal accidents fatalities year 1 11.1 1 9 year 2 11.4 2 89 year 3 10.8 5 528 year 4 10.4 0 1 year 5 10.2 1 24 year 6 10.8 0 13 year 7 11.1 2 24 year 8 10.8 2 52 year 9 10.7 1 1 year 10 10.8 1 1

Explanation:

Step1: Recall mean formula

The mean $\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}$, where $x_{i}$ are the data - points and $n$ is the number of data - points.

Step2: Sum up the number of fatalities

$\sum_{i = 1}^{10}x_{i}=9 + 89+528+1+24+13+24+52+1+1=742$.

Step3: Determine the number of years

$n = 10$.

Step4: Calculate the mean

$\bar{x}=\frac{742}{10}=74.2$.

Answer:

$74.2$