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Set X: {-27, -20, -13, -6, 1, 8, 15} Set Y: {-23, -19, -15,

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Bunuel

Senior Manager

Joined: 20 May 2014

Posts: 283

Set X: {-27, -20, -13, -6, 1, 8, 15} Set Y: {-23, -19, -15, [#permalink]

16 Oct 2017, 08:33

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100% (00:51) correct

0% (00:00) wrong

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Set X: {-27, -20, -13, -6, 1, 8, 15}

Set Y: {-23, -19, -15, -11, -7, -3, 1, 5, 9, 13}

Quantity A	Quantity B
Mean of set X	Mean of set Y

A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

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IlCreatore

Director

Joined: 03 Sep 2017

Posts: 518

Re: Set X: {-27, -20, -13, -6, 1, 8, 15} Set Y: {-23, -19, -15, [#permalink]

16 Oct 2017, 09:25

Computing the means we get quantity A equal to \(\frac{-27-20-13-6+1+8+15}{7} = -6\) and quantity B equal to \(\frac{-23-19-15-11-7-3+1+5+9+13}{10} = -5\).

Then, quantity B is greater!