contingency table summarizes the
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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Transcribed Image Text:● Question 9
The following contingency table summarizes the school enrollment by level and type:
Public (11)
Private (T2)
Elementary School (L1)
Middle School (L2)
High School (L3)
Total
iv. P(L3 or T1) =
v. P(L1 | T1) =
375
c. Answer the following questions:
179
a. For a randomly selected student, describe the following in words:
o L1 is Select an answer
Select an answer
Select an answer
199
Select an answer
an event in which a randomly selected student is in Elementary School
an event in which a randomly selected student is i Public
an event in which a randomly selected student is in Private
an event in which a randomly selected student is in Middle School
an event in which a randomly selected student is in High School
o P(L1) is Select an answer
Select an answer
the probability that a randomly selected student is in Middle School
the probability that a randomly selected student is in Elementary School
the probability that a randomly selected student is in High School
the probability that a randomly selected student is in Private
the probability that a randomly selected student is in Public
b. Find the following probabilities: (Round the answers to 4 decimal places)
i. P(L2) =
ii. P(T1) =
iii. P(L1 and T1) =
=
i. Are L3 and T1 mutually exclusive?
Select an answer
Select an answer
76
55
95
iv. Are L1 and L2 independent?
Select an answer
Select an answer
mutually exclusive
not mutually exclusive
Because the probability of one event depends on whether the other occured or not
Because the two events can not occur at the same time
Because the two events can occur at the same time
Because the probability of one event doesn't depend on whether the other occured or not
ii. Are L3 and T1 independent?
dependent
independent
iii. Are L1 and L2 mutually exclusive? Select an answer
Select an answer
mutually exclusive
not mutually exclusive
Select an answer ✓ Explain.
Select an answer
Select an answer
Select an answer
Because the two events can not occur at the same time
Because the probability of one event doesn't depend on whether the other occured or not
Because the probability of one event depends on whether the other occured or not
Because the two events can occur at the same time
✓ Explain.
Select an answer ✓ Explain.
Select an answer
independent
dependent
Because the probability of one event doesn't depend on whether the other occured or not
Because the two events can not occur at the same time
Because the probability of one event depends on whether the other occured or not
Because the two events can occur at the same time
✓ Explain.
Select an answer
Select an answer
Because the two events can not occur at the same time
Because the probability of one event doesn't depend on whether the other occured or not
Because the probability of one event depends on whether the other occured or not
Because the two events can occur at the same time
Total
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