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Bunuel
The monthly rainfall for the first eight months of 2008 in inches was 2, 4, 4, 5, 7, 9, 10, 11. Which one of the following equals the mean monthly rainfall for the 8 months and the median of the rainfall for the 8 months, respectively?

(A) 6.5, 6
(B) 6, 7.5
(C) 7, 8
(D) 8, 9
(E) 8.5, 9.5

Source: Nova GMAT
Difficulty Level: 550

Since the median is easier to calculate than the mean, let’s calculate the median first. Recall that we list the data values in ascending order, and the median is the middle value. In this case, since there is no single value in the middle, the median is the average of the two middle values:

Median = (5 + 7)/2 = 6

Since only choice A has 6 as the median, A is the correct answer.

Answer: A
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Bunuel
The monthly rainfall for the first eight months of 2008 in inches was 2, 4, 4, 5, 7, 9, 10, 11. Which one of the following equals the mean monthly rainfall for the 8 months and the median of the rainfall for the 8 months, respectively?

(A) 6.5, 6
(B) 6, 7.5
(C) 7, 8
(D) 8, 9
(E) 8.5, 9.5

Source: Nova GMAT
Difficulty Level: 550

Mean = \(\frac{2 + 4 + 4 + 5 + 7 + 9 + 10 + 11}{8}\)

Mean = \(6.50\) , Except (A) none has mean as 6.50 , no need for calculation of Median even for marking the correct choice as (A)
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