There is a normal distribution with min = 4, max = 16 and mean = 10. What is the standard deviation?
Use the 68-95-99.7 rule.
Use the 68-95-99.7 rule.
1 Answer
Feb 12, 2017
#sigma=2#
Explanation:
It is a Normal Distribution.
The extreme values are expected to fall
3 Standard Deviation Distance on either side of the mean.
Then [look at the diagram also the z value of 4 is -3 and the z value of 16 is 3.
#z=(x-barx)/sigma#
At
At
Then -
#z=(16-10)/sigma#
#3=(16-10)/sigma#
#3sigma=16-10#
#sigma=6/3=2#
#sigma=2#