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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, \(x^2\), \(x^3\), 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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New post 19 Feb 2019, 00:49
SajjadAhmad 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.



SajjadAhmad
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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New post 19 Feb 2019, 00:56
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Archit3110 wrote:
SajjadAhmad 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.



SajjadAhmad
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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New post 19 Feb 2019, 01:13
SajjadAhmad 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.. :(
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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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New post 19 Feb 2019, 01:46
Archit3110 wrote:
SajjadAhmad 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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