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S is the set of all test scores in Ms. K’s class. T is the s
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17 Nov 2020, 04:28
17 Nov 2020, 04:28
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Question Stats:
89% (00:31) correct
10% (00:49) wrong based on 67 sessions
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S is the set of all test scores in Ms. K’s class.
T is the set of all test scores in Ms. K’s class, after Ms.
K added 10 points to every test score in the class.
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.
Kudos for the right solution and explanation
T is the set of all test scores in Ms. K’s class, after Ms.
K added 10 points to every test score in the class.
Quantity A |
Quantity B |
The standard deviation of set S |
The standard deviation of set T |
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.
Kudos for the right solution and explanation
Re: S is the set of all test scores in Ms. K’s class. T is the s
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18 Nov 2020, 00:16
18 Nov 2020, 00:16
2
adding and subtracting a value from each number of a series
will not alter the value of standard deviation. Therefore,
just adding 10 with each score will not change the standard deviation.
So the answer here is C (both are always equal)
will not alter the value of standard deviation. Therefore,
just adding 10 with each score will not change the standard deviation.
So the answer here is C (both are always equal)
Re: S is the set of all test scores in Ms. Ks class. T is the s
[#permalink]
22 Nov 2022, 02:32
22 Nov 2022, 02:32
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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.
