Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Americans receive an average of 18 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with a standard deviation of 5.

image text in transcribed
Americans receive an average of 18 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with a standard deviation of 5. 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( 18 b. If an American is randomly chosen, find the probability that this American will receive no more than 19 Christmas cards this year. c. If an American is randomly chosen, find the probability that this American will receive between 17 and 22 Christmas cards this year. d. 77% of all Americans receive at most how many Christmas cards? (Please enter a whole number)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Stability Of Functional Equations In Banach Algebras

Authors: Yeol Je Cho, Choonkil Park, Themistocles M Rassias, Reza Saadati

1st Edition

3319187082, 9783319187082

More Books

Students also viewed these Mathematics questions

Question

Will something truly bad happen if I dont follow this value?

Answered: 1 week ago

Question

List at least three advantages to using a consultant.

Answered: 1 week ago