The diameters of Douglas firs grown at a Christmas tree farm are normally distributed with mean of 5 inches and a standard deviation of 1.5 inches. (Round your answers to four decimal places.) USE SALT (a) What proportion of the trees will have diameters between 4 and 7 inches? (b) What proportion of the trees will have diameters less than 4 inches? (c) Your Christmas tree stand will expand to a diameter of 8 inches. What proportion of the trees will not fit in your Christmas tree stand?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

I need help with all parts of this question 24

The diameters of Douglas firs grown at a Christmas tree farm are normally distributed with a mean of 5 inches and a standard deviation of 1.5 inches. (Round your answers to four decimal places.)
USE SALT
(a) What proportion of the trees will have diameters between 4 and 7 inches?
(b) What proportion of the trees will have diameters less than 4 inches?
(c) Your Christmas tree stand will expand to a diameter of 8 inches. What proportion of the trees will not fit in your Christmas tree stand?
Transcribed Image Text:The diameters of Douglas firs grown at a Christmas tree farm are normally distributed with a mean of 5 inches and a standard deviation of 1.5 inches. (Round your answers to four decimal places.) USE SALT (a) What proportion of the trees will have diameters between 4 and 7 inches? (b) What proportion of the trees will have diameters less than 4 inches? (c) Your Christmas tree stand will expand to a diameter of 8 inches. What proportion of the trees will not fit in your Christmas tree stand?
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman