subject
Mathematics, 03.10.2021 06:40 Kaytlynshue2443

Americans receive an average of 17 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with a standard deviation of 6. Let X be the number of Christmas cards received by a randomly selected American. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(17,6)

b. If an American is randomly chosen, find the probability that this American will receive no more than 18 Christmas cards this year.

c. If an American is randomly chosen, find the probability that this American will receive between 16 and 19 Christmas cards this year.

d. 84% of all Americans receive at most how many Christmas cards? (Please enter a whole number)

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:20, Gigglygoose4181
Choose all that apply. select all of the fees a credit card may have. annual fee apr balance transfer fee cash advance fee late fee overdraft fee over-the-limit fee
Answers: 2
image
Mathematics, 21.06.2019 21:30, kira3039
Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.
Answers: 1
image
Mathematics, 22.06.2019 00:00, tuetheturtle
The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?
Answers: 1
image
Mathematics, 22.06.2019 00:20, mjarrelljr
Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.
Answers: 3
You know the right answer?
Americans receive an average of 17 Christmas cards each year. Suppose the number of Christmas cards...

Questions in other subjects:

Konu
History, 04.05.2021 01:10
Konu
Mathematics, 04.05.2021 01:10