<span>The answer is 0.825.
</span>
3/15 = x/4
cross multiply
15x = (4)(3)
15x = 12
x = 12/15
x = 4/5 <==
Answer:
A
the first one(A) is twice the second rectangle (B)
The standard deviation is the square root of the variance
so if the variance is 196, then the standard deviation is the sqrt of 196, which is 14
