gina is a tour boat operator and she wants to know the mean age of all the people in her tour group. she…

gina is a tour boat operator and she wants to know the mean age of all the people in her tour group. she randomly selects 8 people in the group and asks them for their ages. their responses are 19, 27, 25, 21, 44, 22, 45, and 34. what is the best estimate of the mean age of all the people in the tour group? round to the nearest whole number. enter your answer in the box. years

gina is a tour boat operator and she wants to know the mean age of all the people in her tour group. she randomly selects 8 people in the group and asks them for their ages. their responses are 19, 27, 25, 21, 44, 22, 45, and 34. what is the best estimate of the mean age of all the people in the tour group? round to the nearest whole number. enter your answer in the box. years

Answer

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. Here $n = 8$, and $x_{1}=19,x_{2}=27,x_{3}=25,x_{4}=21,x_{5}=44,x_{6}=22,x_{7}=45,x_{8}=34$.

Step2: Calculate the sum of ages

$\sum_{i = 1}^{8}x_{i}=19 + 27+25+21+44+22+45+34=237$.

Step3: Calculate the mean

$\bar{x}=\frac{237}{8}=29.625$.

Step4: Round to the nearest whole number

Rounding 29.625 to the nearest whole number gives 30.

Answer:

30