1 answer:
9514 1404 393
Answer:
64.6
Step-by-step explanation:
One standard deviation is 4.3. Then +2 standard deviations is ...
(+2)(4.3) = +8.6
This amount added to the mean gives ...
56 +8.6 = 64.6 . . . . +2σ from the mean
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Each notebook costs $2
Step-by-step explanation:
We have to find the amount she spent on each notebook.
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We know she spent $12 on six notebooks
We need to divide to find the answer
12/6=2
Each notebook costs $12
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Step-by-step explanation:
