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For a normal distribution, what percentage of values lies within two standard deviations of the mean? 99.7% 97% 68% 95% I think it is D, may someone please verify?
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Feb 16, 2018
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For a normal distribution, what percentage of values lies within two standard deviations of the mean?
99.7%
97%
68%
95%
I think it is D, may someone please verify?
Mathematics
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Justinas
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The answer is indeed D. If you check the normal distribution curve you get that within 1 standard diviation its
34%+34%=68%
Within 2 it's 34+34+13.5+13.5= 95%
And within 3 it's 34+34+13.5+13.5+2.5+2.5=100%
Cotopaxi
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Feb 21, 2018
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