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triciajfive
02.12.2021 •
Mathematics
**NEED HELP** Nellie takes 4/5 hour to drive to a destination 60 miles away. How many miles per hour is Nellie going?
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Ответ:
Solution :
Given :
The mean height of an American adult = 5 feet 10 inches
Therefore converting feet into inches,
We know, 1 feet = 12 inches
So, 5 feet = 5 x 12 = 60 inches
The mean height in inches = 60+10
= 70 inches
The standard deviation = 3 inches
x = 5 feet 7 inches
= 5 x 12 + 7
= 67 inches
∴ z score =![\frac{x-mean}{sd}](/tpl/images/1372/8453/68d55.png)
Therefore, the man's height is 1 standard deviation below mean
Any score above greater than 3 or less than -3 is considered to be an outliner.
Here its only -1 and it is less than -3.
Therefore, the height of the man 5'7'' is not considered abnormally short.