Answer:
my answer is C $69.87
Step-by-step explanation:
Answer:

And using the probability mass function we got:
Step-by-step explanation:
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find the following probability:

And using the probability mass function we got:
Answer: 8/4
Step-by-step explanation: if I’m wrong just watch the video for a hint it helps