Answer:
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.
