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9, 9, 9, 7, 7, 15, 11, ? 32. The eight numbers shown repre
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14 Aug 2020, 10:58
14 Aug 2020, 10:58
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Question Stats:
86% (01:05) correct
13% (00:53) wrong based on 15 sessions
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9, 9, 9, 7, 7, 15, 11, x
The eight numbers shown represent the weight, in pounds, of eight cats in a pet store. What is the median weight, in pounds, of the eight cats in the pet store?
The eight numbers shown represent the weight, in pounds, of eight cats in a pet store. What is the median weight, in pounds, of the eight cats in the pet store?
Show: :: OA
9
Re: 9, 9, 9, 7, 7, 15, 11, ? 32. The eight numbers shown repre
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14 Aug 2020, 10:58
14 Aug 2020, 10:58
Expert Reply
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Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
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Re: 9, 9, 9, 7, 7, 15, 11, ? 32. The eight numbers shown repre
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14 Aug 2020, 11:07
14 Aug 2020, 11:07
Carcass wrote:
9, 9, 9, 7, 7, 15, 11, x
The eight numbers shown represent the weight, in pounds, of eight cats in a pet store. What is the median weight, in pounds, of the eight cats in the pet store?
The eight numbers shown represent the weight, in pounds, of eight cats in a pet store. What is the median weight, in pounds, of the eight cats in the pet store?
Show: :: OA
9
Since this question can have only ONE solution, we don't need to spend any time considering various values of x.
Instead we can choose a nice (easy-to-work-with) value of x, and then determine the median of the resulting set of numbers.
So, if x = 1, the eight numbers, when arranged in ascending order, are: {1, 7, 7, 9, 9, 9, 11, 15}
Since the set has an EVEN number of values, the median is the average of the two middlemost values.
So the median = (9 + 9)/2 = 9
Answer: 9
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