Answer:
The variance is 49595.9
The standard deviation is 222.7
Step-by-step explanation:
The step -by -step explanation is shown in the picture above.
refer the attachment for your answer
-a^-2 if a=-5
= - 1/a^2
= - (1 / (-5))^2
= - 1/25
= - 0.04
its obiously 1 in my view
.
Option solution “ B ”
#LearnWithBrainly
the answer is 1/3...................