Please Help With This 2 Part Problem 1 (98.87 KiB) Viewed 28 times
Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. n 108 128 The area of the shaded region is (Round to four decimal places as needed.)
The overhead reach distances of adult females are normally distributed with a mean of 205 cm and a standard deviation of 8.9 cm. a. Find the probability that an individual distance is greater than 214.30 cm. b. Find the probability that the mean for 25 randomly selected distances is greater than 203.50 cm. c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? a. The probability is . (Round to four decimal places as needed.)
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