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# For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T

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For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T  [#permalink]

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18 Feb 2019, 11:55
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45% (medium)

Question Stats:

55% (01:11) correct 45% (01:42) wrong based on 28 sessions

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For the set of measurements 3, $$x^2$$, $$x^3$$, what is the value of $$x^3$$?

(1) The range of the set of measurements is 0.
(2) The standard deviation of the set of measurements is 0.

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Re: For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T  [#permalink]

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19 Feb 2019, 00:49
For the set of measurements 3, x2, x3, what is the value of x3 ?

(1) The range of the set of measurements is 0.
(2) The standard deviation of the set of measurements is 0.

is question
3, x^2, x^3 or 3,x*2,x*2 ?
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Re: For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T  [#permalink]

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19 Feb 2019, 00:56
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Archit3110 wrote:
For the set of measurements 3, x2, x3, what is the value of x3 ?

(1) The range of the set of measurements is 0.
(2) The standard deviation of the set of measurements is 0.

is question
3, x^2, x^3 or 3,x*2,x*2 ?

Yes, suppose that's the case. Edited. Thank you.
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Re: For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T  [#permalink]

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19 Feb 2019, 01:13
For the set of measurements 3, x^2, x^3, what is the value of x^3 ?

(1) The range of the set of measurements is 0.
(2) The standard deviation of the set of measurements is 0.

GMATinsight :
not able to understand #1 3,x^2,x^3 has a range of 0 ?
i tried substituting value of x as fraction and integer ; not able to solve..
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Re: For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T  [#permalink]

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19 Feb 2019, 01:46
Archit3110 wrote:
For the set of measurements 3, x^2, x^3, what is the value of x^3 ?

(1) The range of the set of measurements is 0.
(2) The standard deviation of the set of measurements is 0.

GMATinsight :
not able to understand #1 3,x^2,x^3 has a range of 0 ?
i tried substituting value of x as fraction and integer ; not able to solve..

Archit3110

For Set {$$3, x^2, x^3$$} to have Range = 0, All the values of the set must be same

i.e. $$x^2 = x^3 = 3$$

Which is not possible for any value of x so I am suret here is some mistake in the question

If the set were {1, x^2, x^3} then it's possible for x = 1
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Re: For the set of measurements 3, x2, x3, what is the value of x3 ? (1) T   [#permalink] 19 Feb 2019, 01:46
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