182 Answered Questions for the topic Standard Deviation

Standard Deviation

02/18/14

I need to find one, two and three standards deviations above the mean over 14.88 and one,two and three below this mean
I need to find one, two and three standards deviations above the mean over 14.88 and one,two and three below this mean. The standard deviation in this equation is 2.8
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Standard Deviation Mean

01/26/14

standard deviation
IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the x-score that corresponds to a z-score of 1.96.
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Standard Deviation

12/16/13

Percentage via standard deviation
The mean height of adult men in the Dinaric Alps is 73 inches with a standard deviation of 3 inches. If the average height for the adult american man is 69 inches, what percent of adult men in the... more
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Standard Deviation

10/26/13

explain a person's score of 2.5 standard deviations above the mean on a test
explain a person's score of 2.5 standard deviations above the mean on a test?  
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Standard Deviation Statistics Mean

03/20/13

Determine the area under a normal distribution graph with a mean of 55 and a standard deviation of 7?
a) to the right of x = 58 b) to the left of x = 24 Please show graphs if you can!!
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Standard Deviation Statistics Mean

03/20/13

How to find a percentage from standard deviation and mean?
Tommy Wait’s times between pitches is normally distributed with a mean of 36 sec. and a standard deviation of 2.5 sec. What percentage of his times between his pitches are 30 and 34 seconds? Please... more
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Standard Deviation

12/01/12

any rules applied to find assumed mean
how to find assumed mean while solving problems like standard deviation or finding mean by direct method?
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