Sure man go ahead!!!!!!!!!!!!!!!!!
Answer:
b
Step-by-step explanation:
Answer: C
Step-by-step explanation:
Answer:

And the best option would be:

Step-by-step explanation:
We assume that the distribution for the random variable is:

For this case we want to calculate the following probability:

And we can use the normal standard distribution or excel and we got:

And the best option would be:
