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In a normally distributed set of data, the mean is 12 and th
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29 Jul 2018, 04:35
29 Jul 2018, 04:35
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Question Stats:
72% (01:00) correct
27% (01:16) wrong based on 69 sessions
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In a normally distributed set of data, the mean is 12 and the standard deviation is less than 3.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The number of data points in the set between 9 and 15 |
60% of the total number of data points |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: In a normally distributed set of data, the mean is 12 and th
[#permalink]
03 Aug 2018, 04:37
03 Aug 2018, 04:37
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1
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In a normally distributed dataset. 68% of data lie within 1 sd of the mean. Since 1sd is less than 3. Given that mean is 12 the no of data between 9 and 15 will be more than 68%. Hence option A
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Posted from my mobile device
Re: In a normally distributed set of data, the mean is 12 and th
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27 Aug 2023, 02:31
27 Aug 2023, 02:31
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
