Answer:
A
Step-by-step explanation:
A is the answer A is the answer
Well i guess 8 because 4/5 = 8/10 and 8/10 = .8 so yea
Absolute value, aka same distance from 0
for example |5| is five numbers away from zero and |-5| is also five numbers away from zero
2 and 14/15
Because the first step of subtraction is common denominators
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