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:

You would have to Multiply 50 by 2 and then Multiply the answer to 300.
Answer:
I'm getting stuck by

Sorry I can't help you out, if you find the answer through FP lmk