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# If the mean of a data set is 75 and the standard deviation is 10, what

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Re: If the mean of a data set is 75 and the standard deviation is 10, what [#permalink]
So range is 85 - 65 = 20
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If the mean of a data set is 75 and the standard deviation is 10, what [#permalink]
enigma123 wrote:
If the mean of a data set is 75 and the standard deviation is 10, what is the range of scores that fall within one standard deviation of the mean?

How can I solve these kind of questions guys? What's the meaning of one SD from the mean? I am struggling badly.

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If the mean of a data set is 75 and the standard deviation is 10, what [#permalink]
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enigma123 wrote:
If the mean of a data set is 75 and the standard deviation is 10, what is the range of scores that fall within one standard deviation of the mean?

How can I solve these kind of questions guys? What's the meaning of one SD from the mean? I am struggling badly.

Range = Mean + SD

So, Range = 75 + 10

Thus, So, Range = 65 to 85

PS : Refer this link for te concepts : https://gmatclub.com/forum/statistics-m ... l#p1563151
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Re: If the mean of a data set is 75 and the standard deviation is 10, what [#permalink]
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Re: If the mean of a data set is 75 and the standard deviation is 10, what [#permalink]
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