I need help with a few questions, note that they are random questions.

Question 4)

6.2.15 Question Help? it Assu me that adults have IQ scores that are normally:r distributed with a mean ofp = 100 and a standard deviation 0' = 20. Find the probability that a randomly selected adult has an IQ between B? and 113. Click to View page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 8? and 113 is E. (Type an integer or decimal rounded to tour decimal places as needed.) 6.2.31 Assigned Media 7 Question Help 7 {I The lengths of pregnancies are normally distributed with a mean of 2H] days and a standard deviation of 15 days. 3. Find the probability of a pregnancy lasting 309 days or longer. b. If the length of pregnancy is in the lowest 3%, then the baby is premature. Find the length that separates premature babies from those who are not pre mature. Click to View page 1 of the table. Click to view page 2 of the table. a. The probability that a pregnancy will last 309 days or longer is (Round to tour decimal places as needed.) 6.3.12 Assigned Media Question Help Assume a population of 46, 51, 53, and 59. Assume that samples of size n = 2 are randomly selected with replacement from the population. Listed below are the sixteen different samples. Complete parts (a) through (c). 46,46 46,51 46,53 46,59 51,46 51,51 51,53 51,59 53,46 53,51 53,53 53,59 59,46 59,51 59,53 59,59 a. Find the median of each of the sixteen samples, then summarize the sampling distribution of the medians in the format of a table representing the probability distribution of the distinct median values. Use ascending order of the sample medians. Sample Median Probability Sample Median Probability 46 52.5 0.125 48.5 0.125 53 49.5 0.125 55 0.125 51 56 0. 125 52 0.125 59 (Type integers or simplified fractions. Use ascending order of the sample medians.)