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Set A has a mean of 4 and a standard deviation of 2.
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20 Mar 2019, 23:45
20 Mar 2019, 23:45
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68% (00:35) correct
31% (01:04) wrong based on 16 sessions
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Set A has a mean of 4 and a standard deviation of 2.
Set B has a mean of 100 and a standard deviation of 20.
Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.
Set B has a mean of 100 and a standard deviation of 20.
Quantity A |
Quantity B |
The dispersion of numbers in Set A |
The dispersion of numbers in Set B |
Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.
Re: Set A has a mean of 4 and a standard deviation of 2.
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21 Mar 2019, 21:07
21 Mar 2019, 21:07
1
standard deviation measures the dispersion of value from the central value i.e mean.
Since qty B has more dispersion of 20 compared to qty A's dispersion of 2
Since qty B has more dispersion of 20 compared to qty A's dispersion of 2
gmatclubot
Re: Set A has a mean of 4 and a standard deviation of 2. [#permalink]
21 Mar 2019, 21:07
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