Question 15 {6 points] According to a survey conducted by OnCampus Research, 20% of college students reported they will work during spring break. Elased on this survey answer the following questions: Determine the probability that exactly 3 of 5 college students selected at random will work during spring break. - Determine the probability that exactly 4 of 4 college students selected at random will work during spring break. - Question 16 {6 points} The safetyr supervisor at a large manufacturing plant believes that the expected number of industrial accidents per month to be 3.4. Assuming the accidents are independent, determine the following probabilities: What is the probability of exactly.r two accidents occurring next month?{Round to nearest hundredth} - What is the probability of three or more accidents occurring next month?[Round to nearest hundredth} - Question 1? {8 points] Suppose that the intelligence quotients (IQ scores} are normallv distributed with a mean of 100 and a standard deviation of 15. Determine the percent of individuals with IQ scores [Obtain values as given in the z-score table; four decimal place and convert it into the percentage] below 115 - between ?0 and 115 - above 122.5 - A company manufactures commercial paint sprayers. The mean life of a paint sprayer is 2000 hours with a standard deviation of 100 hours. They assume that a sprayer will be used 9 hours a day. How many days should they warrant their sprayers if they only want to pay off on 5% of them