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Set S is a set of distinct positive integers.
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Updated on: 15 Oct 2018, 13:46
Updated on: 15 Oct 2018, 13:46
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23% (00:49) correct
76% (01:01) wrong based on 21 sessions
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Set S is a set of distinct positive integers. The standard deviation of Set S must increase if which of the following were to occur?
Indicate all such statements.
Each number in the set is multiplied by \(\frac{1}{2}\).
The smallest number is increased to become equal to the median.
The smallest number is increased to become larger than the current largest number.
The largest number is doubled.
Please explain why answer option 3 is not the correct answer.
Indicate all such statements.
Each number in the set is multiplied by \(\frac{1}{2}\).
The smallest number is increased to become equal to the median.
The smallest number is increased to become larger than the current largest number.
The largest number is doubled.
Please explain why answer option 3 is not the correct answer.
Re: problem on Statistics
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15 Oct 2018, 13:44
15 Oct 2018, 13:44
Expert Reply
Please follow the rules for posting here https://gre.myprepclub.com/forum/rules-for ... -1083.html
They are pivotal. And the question is posted in the wrong subforum.
Moreover, the use of tags by you is too much. 3 a more than enough.
Thank you
They are pivotal. And the question is posted in the wrong subforum.
Moreover, the use of tags by you is too much. 3 a more than enough.
Thank you
Re: Set S is a set of distinct positive integers.
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29 Sep 2019, 13:07
29 Sep 2019, 13:07
1
Just for option B,
suppose, (1,2,3) to (2,2,3) (The smallest number is increased to become equal to the median.)
So, SD decreased. How could it be an answer?
suppose, (1,2,3) to (2,2,3) (The smallest number is increased to become equal to the median.)
So, SD decreased. How could it be an answer?
