Please help. Thank you!

Question 1 There are sh drawn on the walls all around you. Each sh has some number oferrors which is gjm by a Poisson distribution 1with parameter El. A sh is oonsidered \"wrong\" if it has {strictly} more than 4 errors. Calculate the expected number of sh you must oount until you nd one that is considered \"wrong\". To get the nal answer1 nd the proportion of sh you just counted out of 1??? sh on the walls in total. 1'J:"ou must use random 1variables. Provide 4-15 decimal planes depending on your answer. {Although there are l' sh on the walls and you're asked to nd that proportion. assume that you have an innite number of sh when you are nding the expected number of sh you must count until you find one that is "'wrong\"]