Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standard deviation a = 15. Find the probability that a randomly selected adult has an IQ less than 118. 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 less than 118 is (Type an integer or decimal rounded to four decimal places as needed.)

A student takes a multiple-choice test that has 6 questions. Each question has four choices. The student guesses randomly at each answer. Round the answers to three decimal places. Find P(4 correct answers) b. Find (more than 1 correct answer) c. Find mean and standard deviation

you are analyzing the variables that explain the returns on the stock of the Boeing Com- pany. Because overall market returns are likely to explain a part of the returns on Boeing, you decide to include the returns on a value-weighted index of all the companies listed on the nySe, aMeX, and naSdaQ as an independent variable. Further, because Boeing is a large company, you also decide to include the returns on the S&P 500 index, which is a value-weighted index of the larger market-capitalization companies. Finally, you decide to include the changes in the uS dollar’s value. to conduct your test, you have collected the following data for the period 1990–2002. Rt = monthly return on the stock of Boeing in month t RALLt = monthly return on a value-weighted index of all the companies listed on the nySe, aMeX, and naSdaQ in month t RSPt = monthly return on the S&P 500 index in month t ΔXt = change in month t in the log of a trade-weighted index of the foreign exchange value of the uS…

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. Click to view page 1 of the table. Click to view page 2 of the table. 95 120 The area of the shaded region is (Round to four decimal places as needed.)