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?

Mean age of all the people in the tour group is 30.

Step-by-step explanation:

Gina wants to know the mean age of all the people in her tour group.

she randomly selects 8 people in the group and their ages are :

19, 27, 25, 21, 44, 22, 45 and 34

Mean is the average number of data set.

To find out mean the formula is = Sum of total values / Number of values

so we add all the values

19 + 27 + 25 + 21 + 44 + 22 + 45 + 34 = 237

Mean = 237 ÷ 8 = 29.625 round it to the nearest 30.

We best estimate of the mean age of all the people is 30.

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

correct answer is b. 27/8

step-by-step explanation: