Nina pays $32.65 to mail a package it cost $0.45 per ounce to mail the package. how much does Nina's package weigh
2 answers:
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Answer:
D.]
Step-by-step explanation:
We will find the standard deviation and variance:
Variance= E-[
E[x] = 3.462
E[{x}^2]= 31.86
Var(x)= 31.86-(3.462)^2 = 28.4
Standard deviation =
=
= 5.833 = 6(aproximately)
Therefore, the chances of winning are equal in each lane.
