A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 52.2 mm and a standard deviation of 2.3 mm. What percent of the butterflies had a wingspan a. less than 48.5 mm? b. between 50 and 55 mm?
A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 52.2 mm and a standard deviation of 2.3 mm. What percent of the butterflies had a wingspan a. less than 48.5 mm? b. between 50 and 55 mm?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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![a. z =-1.47 and z = 1.64
1.82
b. z=-0.44 and z =
c. The region where z> 1.92
d. The region where z < 2.22
A biologist found the wingspans of a group of monary butterflies to be normally
distributed with a mean of 52.2 mm and a standard deviation of 2.3 mm. What
percent of the butterflies had a wingspan
a. less than 48.5 mm?
b. between 50 and 55 mm?
3. A highway study of 8000 vehicles that passed by a checkpoint found that their
speeds were normally distributed, with a mean of 61 mph and a standard deviation
of 7 mph.
a. How many of the vehicles had a speed of more than 68 mph?
b. How many of the vehicles had a speed of less than 40](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80a38453-10b7-40f7-b04d-82c0252c3cd2%2Fadb9b3eb-e327-4f9d-a26b-642b390d88b2%2Fs8dnxmr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:a. z =-1.47 and z = 1.64
1.82
b. z=-0.44 and z =
c. The region where z> 1.92
d. The region where z < 2.22
A biologist found the wingspans of a group of monary butterflies to be normally
distributed with a mean of 52.2 mm and a standard deviation of 2.3 mm. What
percent of the butterflies had a wingspan
a. less than 48.5 mm?
b. between 50 and 55 mm?
3. A highway study of 8000 vehicles that passed by a checkpoint found that their
speeds were normally distributed, with a mean of 61 mph and a standard deviation
of 7 mph.
a. How many of the vehicles had a speed of more than 68 mph?
b. How many of the vehicles had a speed of less than 40
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