ADK TOUR TEACHER Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability distribution of x appears in the following table. 2 3 4 P(x) 0.03 0.04 0.09 0.24 0.40 0.14 0.06 It can be easily verified that u = 4.6 and o = 1.29. (a) Because u – o = 3.31, the x values 1, 2, and 3 are more than 1 standard deviation below the mean. What is the probability that x is more than 1 standard deviation below its mean? (b) What x values e more than 2 standard deviations away from the mean value (either less than u - 20 or greater than u + 20)? (Select all that apply.) Ox = 1 Ox = 2 Ox = 3 Ox = 4 Ox = 5 O x = 6 Ox = 7 (c) What is the probability that x is more than 2 standard deviations away from its mean value?
ADK TOUR TEACHER Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability distribution of x appears in the following table. 2 3 4 P(x) 0.03 0.04 0.09 0.24 0.40 0.14 0.06 It can be easily verified that u = 4.6 and o = 1.29. (a) Because u – o = 3.31, the x values 1, 2, and 3 are more than 1 standard deviation below the mean. What is the probability that x is more than 1 standard deviation below its mean? (b) What x values e more than 2 standard deviations away from the mean value (either less than u - 20 or greater than u + 20)? (Select all that apply.) Ox = 1 Ox = 2 Ox = 3 Ox = 4 Ox = 5 O x = 6 Ox = 7 (c) What is the probability that x is more than 2 standard deviations away from its mean value?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![HER
Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability
distribution of x appears in the following table.
1
4
6.
P(x)
0.03
0.04
0.09
0.24
0.40
0.14
0.06
It can be easily verified that u = 4.6 and o = 1.29.
(a) Because u – o = 3.31, the x values 1, 2, and 3 are more than 1 standard deviation below the mean. What is the
probability that x is more than 1 standard deviation below its mean?
(b) What x values are more than 2 standard deviations away from the mean value (either less than u – 20 or greater
than u + 20)? (Select all that apply.)
Ox = 1
Ox = 2
Ox = 3
Ox = 4
Ox = 5
O x = 6
Ox = 7
(c) What is the probability that x is more than 2 standard deviations away from its mean value?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2eaed2be-574b-4250-b175-30e358efe567%2F0bf1b218-b08a-408e-a833-8183aeb3f917%2Fe6mcb2r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:HER
Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability
distribution of x appears in the following table.
1
4
6.
P(x)
0.03
0.04
0.09
0.24
0.40
0.14
0.06
It can be easily verified that u = 4.6 and o = 1.29.
(a) Because u – o = 3.31, the x values 1, 2, and 3 are more than 1 standard deviation below the mean. What is the
probability that x is more than 1 standard deviation below its mean?
(b) What x values are more than 2 standard deviations away from the mean value (either less than u – 20 or greater
than u + 20)? (Select all that apply.)
Ox = 1
Ox = 2
Ox = 3
Ox = 4
Ox = 5
O x = 6
Ox = 7
(c) What is the probability that x is more than 2 standard deviations away from its mean value?
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