1. What is the probability that 2 or more students have Mathitus? 2. What is the mean number (to nearest 0.1) of students with Mathitus? [Show all of your work.] 3. What is the standard deviation (to nearest 0.1) of the number of students with Mathitus? [Show all of your work with a table.]

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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For Problems 1-4: The table at right shows
the probability of the number of students with
"Mathitus" among 4 randomly selected students.
P(x)
0.20
1
0.40
0.25
3
0.10
4
0.05
1. What is the probabilitythat 2 or more students have Mathitus?
2. What is the mean number (to nearest 0.1) of students with Mathitus? [Show all of your work]
3. What is the standard deviation (to nearest 0.1) of the number of students with Mathitus? [Show
all of your work with a table.]
Transcribed Image Text:For Problems 1-4: The table at right shows the probability of the number of students with "Mathitus" among 4 randomly selected students. P(x) 0.20 1 0.40 0.25 3 0.10 4 0.05 1. What is the probabilitythat 2 or more students have Mathitus? 2. What is the mean number (to nearest 0.1) of students with Mathitus? [Show all of your work] 3. What is the standard deviation (to nearest 0.1) of the number of students with Mathitus? [Show all of your work with a table.]
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