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

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
Sorry guys but as you have a small brain
Answers: 1
question
Mathematics, 21.06.2019 19:00
What is the average diastolic blood pressure for adults
Answers: 2
question
Mathematics, 21.06.2019 21:30
Af jewelry box is in the shape of a rectangular prism with an area of 528 cube inches. the length of the box is 12 inches and the height is 5 1/2 inches. what is the width of the jewelry box
Answers: 1
question
Mathematics, 21.06.2019 23:30
Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons
Answers: 2
You know the right answer?
Americans receive an average of 17 Christmas cards each year. Suppose the number of Christmas cards...
Questions
question
Chemistry, 13.02.2021 06:30
question
Mathematics, 13.02.2021 06:30
Questions on the website: 13722362