36. Two college roommates have each committed to donating to charity each week for the next year. The roommates' weekly incomes are independent of each other. Suppose the amount donated in a week by one roommate is approximately normal with mean $30 and standard deviation $10, and the amount donated in a week by the other roommate is approximately normal with mean $60 and standard deviation $20. Which of the following is closest to the expected number of weeks in a 52-week year that their combined donation will exceed $120 ? blow anoli (A) 0; the combined donation never exceeds $120 in a week (B) 1 week (C) 3 weeks (D) 5 weeks (E) 8 weeks but I to Jason (A) sobota la to going 02 bas sigma (0)

36. Two college roommates have each committed to donating to charity each week for the next year. The roommates' weekly incomes are independent of each other. Suppose the amount donated in a week by one roommate is approximately normal with mean $30 and standard deviation $10, and the amount donated in a week by the other roommate is approximately normal with mean $60 and standard deviation $20. Which of the following is closest to the expected number of weeks in a 52-week year that their combined donation will exceed $120 ? blow anoli (A) 0; the combined donation never exceeds $120 in a week (B) 1 week (C) 3 weeks (D) 5 weeks (E) 8 weeks but I to Jason (A) sobota la to going 02 bas sigma (0)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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