Answer:
D
Step-by-step explanation:
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➷ Standard deviation = 
Substitute the values in:
= 8.1975...
This can be rounded to give an approximate answer of 8.2
The answer is option A.
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We need a pic of the line plot to complete and answer this
Step-by-step explanation:
your friend is closer to the school (b)
it's graph covers less area..
5.231.281 : 70.323 = 74,3 people per square mile
or 74 people per square mile