<h2>
Answer:</h2>
Variance
<h2>
Step-by-step explanation:</h2>
The standard deviation is related to the variance. The standard deviation measures the variation or dispersion of a set of data and is represented by the Greek letter sigma
, while the variance measures how far a set of numbers are spread out from their average value. The variance is obtained by squaring the standard deviation, so the variance can be found as 
5×2+8-4+1=15
cause
5×2=10
10+8=18
18-4=14
14+1=15
C. By three feet 7x5=35 area 7x10=70 area 7+3=10
Answer:
the answer is 17.3 repeated
Step-by-step explanation:
because 52 divided by 3