statistics

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sonney32

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Suppose 95% of the data fall between 12.3 and 46.8. Using the empirical rule, give an estimate of the standard deviation.

I am not sure where to start on this question.
Thanks
 
What is the range of the two given values?. Find that, then divide by 4.
 
sonney32 said:
Suppose 95% of the data fall between 12.3 and 46.8. Using the empirical rule, give an estimate of the standard deviation.

I am not sure where to start on this question.
Thanks
Click to expand...
Hint:
Assuming normal distribution

(µ + 2?) = 46.8

(µ - 2?) = 12.3
 
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