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What was the approximate average number of sales of fiction titles fro

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What was the approximate average number of sales of fiction titles fro [#permalink]

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New post 28 May 2017, 07:19
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What was the approximate average number of sales of fiction titles from 1984 to 1988?

(A) 15 thousand
(B) 30 thousand
(C) 40 thousand
(D) 48 thousand
(E) 60 thousand
[Reveal] Spoiler: OA

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Re: What was the approximate average number of sales of fiction titles fro [#permalink]

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New post 29 May 2017, 08:08
Fiction sales 84 =30

Fiction sales 85 =10

Fiction sales 86 =52.......approximate

Fiction sales 87 =58........ approximate

Fiction sales 88 =95........ approximate

Mean = 245 / 5 = 59

59 is close to 58

Answer: D

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Re: What was the approximate average number of sales of fiction titles fro [#permalink]

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New post 29 May 2017, 09:12
Bunuel wrote:
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What was the approximate average number of sales of fiction titles from 1984 to 1988?

(A) 15 thousand
(B) 30 thousand
(C) 40 thousand
(D) 48 thousand
(E) 60 thousand


\(Average = \frac{(30+12+52+52+95)}{5}\)

Or, \(Average = \frac{241}{5}\)

Or, \(Average = 48.20\)

Thus, the answer will be (D) 48

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Re: What was the approximate average number of sales of fiction titles fro [#permalink]

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New post 29 May 2017, 09:23
Year 1984 1985 1986 1987 1988
Sales 30K 10K 52K 52K 95

Average = \(\frac{Total Sum}{Number of items}\)
Sum = 30 + 10 + 52 + 52 + 95 = 239
Number = 5
Average = \(\frac{239}{5}\) = 47.5 ~ 48K ans (D)
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Re: What was the approximate average number of sales of fiction titles fro [#permalink]

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New post 03 Oct 2017, 06:46
Mo2men wrote:
Fiction sales 84 =30

Fiction sales 85 =10

Fiction sales 86 =52.......approximate

Fiction sales 87 =58........ approximate

Fiction sales 88 =95........ approximate

Mean = 245 / 5 = 59

59 is close to 58

Answer: D


*Just need to fix this minor error-
245/5 is 49 not 59 . Hence the answer is D.

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Re: What was the approximate average number of sales of fiction titles fro   [#permalink] 03 Oct 2017, 06:46
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