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5. Lengths of newborn babies are normally distributed with a mean of 20 inches and a standard deviation of 1 inch. a. Build a number line with the mean in the middle and add/subtract the standard deviation 3 times. Label each % above the number line using the 68-95-99.7 Rule. b. Estimate the percentage of newborn babies that are more than 23 inches. c. Estimate the percentage of newborn babies that are between 17 and 22 inches. d. If 250 babies are born in Michigan today, how many of them would be less than 19 inches?

5. Lengths of newborn babies are normally distributed with a mean of 20 inches and a standard deviation of 1 inch. a. Build a number line with the mean in the middle and add/subtract the standard deviation 3 times. Label each % above the number line using the 68-95-99.7 Rule. b. Estimate the percentage of newborn babies that are more than 23 inches. c. Estimate the percentage of newborn babies that are between 17 and 22 inches. d. If 250 babies are born in Michigan today, how many of them would be less than 19 inches?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 11PPS
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5. Lengths of newborn babies are normally distributed with a mean of 20 inches and a standard deviation of 1 inch. a. Build a number line with the mean in the middle and add/subtract the standard deviation 3 times. Label each % above the number line using the 68-95-99.7 Rule. b. Estimate the percentage of newborn babies that are more than 23 inches. c. Estimate the percentage of newborn babies that are between 17 and 22 inches. d. If 250 babies are born in Michigan today, how many of them would be less than 19 inches?
Transcribed Image Text:5. Lengths of newborn babies are normally distributed with a mean of 20 inches and a standard deviation of 1 inch. a. Build a number line with the mean in the middle and add/subtract the standard deviation 3 times. Label each % above the number line using the 68-95-99.7 Rule. b. Estimate the percentage of newborn babies that are more than 23 inches. c. Estimate the percentage of newborn babies that are between 17 and 22 inches. d. If 250 babies are born in Michigan today, how many of them would be less than 19 inches?
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