Question

estimation: consider this list of data:
x
8
10
11
15
22
29
mark the 2 most plausible approximate values of the mean (average) in the choices below.
(no calculation is necessary)
hint #1: plausible values must be greater than the minimum value and less than the maximum value in the
list.
hint #2: plausible values of the mean are near the middle of the data
6
13
18
29
39

Explanation:

Step1: Identify min and max

Min = 8, Max = 29. So mean must be between 8 and 29. Eliminate 6 (too low) and 39 (too high), 29 (max, mean < max).

Step2: Analyze middle of data

Data: 8, 10, 11, 15, 22, 29. Middle values around 11 - 15. 13 and 18 are near middle (13 closer to lower middle, 18 closer to upper middle) and between 8 - 29.

Answer:

13, 18