Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)   ? = 8; ? = 2 P(7 ≤ x ≤ 11) =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 4CYU
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Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

 
? = 8; ? = 2
P(7 ≤ x ≤ 11) = 
 
? = 40; ? = 16
P(50 ≤ x ≤ 70) = 
 
? = 13.6; ? = 3.1
P(8 ≤ x ≤ 12) = 
 
? = 26; ? = 3.4
P(x ≥ 30) = 
 
? = 104; ? = 15
P(x ≥ 90) =
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