Dependent events Among the math and physics majors, the level of interest in a trip to the planetarium is higher than among the general student body. Assume that among the general student body, 15% of the students are majoring in math or physics. f we select a math or physics major the probability of that individual being interested to visit the planetarium is 60%. a) What is the probability of selecting a student at random who is either a math or physics major and who is interested to visit the planetarium. Describe this as a conditional probability.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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QUESTION 17
Dependent events
Among the math and physics majors, the level of interest in a trip to the planetarium is higher than among the general student body.
Assume that among the general student body, 15% of the students are majoring in math or physics.
If we select a math or physics major the probability of that individual being interested to visit the planetarium is 60%.
a) What is the probability of selecting a student at random who is either a math or physics major and who is interested to visit the planetarium.
Describe this as a conditional probability.
Assume the general level of interest to vist the planetarium across all the students is 25%.
b) Explain how we know the events
A = math or physics major
and
B = interested to visit the planetarium
are dependent events.
Transcribed Image Text:QUESTION 17 Dependent events Among the math and physics majors, the level of interest in a trip to the planetarium is higher than among the general student body. Assume that among the general student body, 15% of the students are majoring in math or physics. If we select a math or physics major the probability of that individual being interested to visit the planetarium is 60%. a) What is the probability of selecting a student at random who is either a math or physics major and who is interested to visit the planetarium. Describe this as a conditional probability. Assume the general level of interest to vist the planetarium across all the students is 25%. b) Explain how we know the events A = math or physics major and B = interested to visit the planetarium are dependent events.
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