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MY NOTES 18. [-/1 Points] DETAILS Assume that IQ scores are normally distributed, with a standard deviation of 15 points and a mean of 100 points. If 75 people are chosen at random, what is the probability that the sample mean of IQ scores will not differ from the population mean by more than 2 points? (use 3 decimal places) MY NOTES 19. [-/9 Points] DETAILS The college Physical Education Department offered an Advanced First Aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below. Robert, 0.95 Juan, 1.80 Susan, -2.03 Joel, 0.00 Jan, -0.65 Linda, 1.59 STEP 1: Which of these students scored above the mean? (Select all that apply.) Joel O Linda O Juan O Susan O Jan D Robert STEP 2: Which of these students scored on the mean? (Select all that apply.) Jan Linda O Joe O Robert O Juan O Susan STEP 3: Which of these students scored below the mean? (Select all that apply.) Susan O Jan Robert D Linda O Juan O Joel24. [-/1 Points] DETAILS MY NOTES Consider a normal distribution with mean 20 and standard deviation 5. What is the probability that a value selected at random from this distribution is greater than 20? (Use 2 decimal places.) 25. [-/1 Points] DETAILS MY NOTES Assume that x has a normal distribution. Find P(3 s x s 6) given that # = 4.3 and