Answer:



Step-by-step explanation:
Given
Let
A = Event of being a universal donor.
So:


Solving (a): Mean and Standard deviation.
The mean is:



The standard deviation is:




Solving (b): P(x = 3)
The event is a binomial event an dthe probability is calculated as:

So, we have:




If you mean h(4)
h(4)=(4)*2 -5(4)
=8-20
=-12
The answer will be-12
Answer:
the answer for that equation is 58.8
Answer:
C
Step-by-step explanation:
It is C because the 2 is attached to the variable Y