Straighterline MAT150 Business Statistics Graded Exam 2 (New Version August 2024) Graded 100%
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Straighterline MAT150 Business Statistics Graded Exam 2 (New Version August 2024) Graded 100%
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Question 1
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Question text
If A and B are mutually exclusive events with P(A) = 0.2 and P(B) = 0.6, then P(A or B) = _____.
Select one:
a. 0.80
b. 0.40
c. 0.00
d. 0.12
Question 2
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Question text
When applying the special rule of addition for mutually exclusive events, the joint probability is
_______.
Select one:
a. 1
b. 0
c. 0.5
d. unknown
, Question 3
Correct
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Question text
A gumball machine has just been filled with 50 black, 150 white, 100 red, and 100 yellow gumballs
that have been thoroughly mixed. Sue and Jim each purchase one gumball. What is the likelihood
that both Sue and Jim will get red gumballs?
Select one:
a. 0.33
b. 0.75
c. 0.50
d. 0.062
Question 4
Correct
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Question text
When an experiment is conducted "without replacement," _______.
Select one:
a. events are equally likely
b. the probability of two or more events is computed as a joint probability
c. events are dependent
d. the experiment can be illustrated with a Venn diagram
Question 5
Correct
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