*PLEASE* Can anyone help with this question? Please show solution

Please show solution--are you serious?
You obviously have come to the wrong forum because believe it or not we want you to solve your problem with our help/hints.
I guess you did not bother to read the forum guidelines which states in part that you need to show your work so we can see where you are going wrong. Please post back with your work so that we can help.
 
Apologies, I am new to this! Ive used Poisson distribution, although I think now I should have used normal distribution. My x^2 is way over the normal range of what we have been taught.
 

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