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A normal distribution has a mean of 25 and standard deviation of 2.
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07 Nov 2021, 16:10
07 Nov 2021, 16:10
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A normal distribution has a mean of 25 and standard deviation of 2.
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 % of the distribution between 21 and 23 |
The % of the distribution between 25 and 27 |
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.
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A normal distribution has a mean of 25 and standard deviation of 2.
[#permalink]
07 Nov 2021, 18:06
07 Nov 2021, 18:06
1
Carcass wrote:
A normal distribution has a mean of 25 and standard deviation of 2.
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 % of the distribution between 21 and 23 |
The % of the distribution between 25 and 27 |
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.
Given: A normal distribution has a mean of 25 and standard deviation of 2.
When we add this information to the normal curve we get the following:
At this point we can answer the question:
QUANTITY A: The % of the distribution between 21 and 23 = 14%
QUANTITY B: The % of the distribution between 25 and 27 = 34%
Answer: B
gmatclubot
A normal distribution has a mean of 25 and standard deviation of 2. [#permalink]
07 Nov 2021, 18:06
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