HW 5: Problem 11 Previous Problem Problem List Next Problem (1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches. Use what you know about a normal distribution and the Empirical rule to answer the following. NOTE: If your answer is a percent, such as 25 percent, enter: "25 PERCENT" (without the quotes). If your answer is in inches, such as 10 inches, enter. 10 INCHES" (without the quotes and with a space between the number and the INCHES). If your answer is an interval, such as 14 to 15 inches, then enter: "14 TO 15 INCHES" (without the quotes). Do not use extra zeros and do not include a decimal point unless your answer is not a whole number. Your answer must be entered in the correct format. (a) About what percent of men are shorter than 66.5 inches? Answer: (b) About what percent of men are between 69 and 74 inches? Answer: (c) About what percent of men are between 64 and 66.5 inches? Answer: Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining. Email Instructor MacBook Air -II F9 F10 F5 FB 888 -- F6 F7 F2 20 F3 % @ $ O # 9 4 5 6 8 2 3 P Y O W E R T U H K S D F G X C V B N MHW 5: Problem 10 Previous Problem Problem List Next Problem (1 point) Joe is new to cooking. The probability that Joe burns dinner is 55%. What is the probability that in the next 7 dinners Joe prepares, less than 3 of them will burn? Express your answer as a decimal rounded to 3 decimal places after the decimal point. Answer: Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining. Email Instructor Page generated at 06/16/2021 at 09:49am EDT WeBWork @ 1996-2019| theme: math4 | ww_version: 2.15 | pg_version 2.15| The WeBWork Project MacBook Air F7 II FB F9 F10 F11 F5 F6 F2 20 F3 $ % 6 8 O 4 5 N 3 O P W E R T Y U S D F G H K C V B N M(1 point) IQ scores have a mean of 100 and a standard deviation of 12. Joe has an IQ of 122. (a) What is the difference between Joe's IQ and the mean? Answer: (b) Convert Joe's IQ score to a z-score ( round to 2 decimal places )