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Students Losing Weight

APSTAT-VALLKE

Suppose a school nurse measured the weights of $10$ of her students. The weights have a mean of $104$ pounds with a standard deviation of $11$ pounds.

If the each student lost $5$ pounds the next day, what would the new mean and standard deviation be?

A

Mean = $104\text{ lbs}$

Standard deviation = $11\text{ lbs}$

B

Mean = $99\text{ lbs}$

Standard deviation = $11\text{ lbs}$

C

Mean = $99\text{ lbs}$

Standard deviation = $6\text{ lbs}$

D

Mean = $104\text{ lbs}$

Standard deviation = $6\text{ lbs}$

E

Mean = $52\text{ lbs}$

Standard deviation =$6\text{ lbs}$