The correct answer is B 9.74_98.1
2 because if you convert the fractions into decimals then divide it that way it will be 2
0.24/.012 Answer= 20
You just divide the .24 by .012
STEP 1
Mean =

STEP 2
Subtract the mean from each data value then square the answer

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STEP 3
Add the squared answers in STEP 2 then find the mean

STEP 4
Square root the answer in STEP 3

Standard deviation is 236.5