X is the Binomial Random Variable which counts the number of students who passed an exam. If the class has 66 students and the probability that a single student passes the exam is 0.86, what is the mean (or expected value) of the distribution? Write answers correct to 4 decimal places. (Do not round to the nearest student).
X is the Binomial Random Variable which counts the number of students who passed an exam. If the class has 66 students and the probability that a single student passes the exam is 0.86, what is the mean (or expected value) of the distribution? Write answers correct to 4 decimal places. (Do not round to the nearest student).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Need help with question 14 & 15
Transcribed Image Text:Question 14
Select the appropriate response.
A bag contains 150 red balls and 120 green balls. One at a time a ball is selected, the color is
recorded and the ball places to the side (not returned to the bag). This is done until 100 balls have
been pulled from the bag.
X = number of outcomes that are red.
E
Is X a binomial random variable?
O No, not a binomial distribution because there are more then two outcomes.
O Yes, is a binomial distribution.
No, not a binomial because the number of trials is not fixed (known).
O No, not a binomial because the probability of a success changes with each trial (the trials are not
independent).
20
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Transcribed Image Text:Question 14
Select the appropriate response.
A bag contains 150 red balls and 120 green balls. One at a time a ball is selected, the color is
recorded and the ball places to the side (not returned to the bag). This is done until 100 balls have
been pulled from the bag.
X = number of outcomes that are red.
E
Is X a binomial random variable?
O No, not a binomial distribution because there are more then two outcomes.
O Yes, is a binomial distribution.
No, not a binomial because the number of trials is not fixed (known).
O No, not a binomial because the probability of a success changes with each trial (the trials are not
independent).
20
F3
000
000
$
T
4
R
F4
%
5
T
F5
<
6
MacBook Air
T
F6
Y
&
7
F7
U
*
8
▶II
F8
9
F9
0
0
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