There are 500 students in a certain school. 150 students are enrolled in an Algebra course and 80 students are enrolled in a Chemistry course. There are 30 students who are taking both Algebra and Chemistry. If a student is chosen at random: (i) What is the probability that the student is taking Algebra? (ii) What is the probability that the student is taking Chemistry, given that the student is also taking Algebra? (iii) What is the probability that the student is taking Algebra, given that the student is also taking Chemistry?

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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There are 500 students in a certain school. 150 students are enrolled in an Algebra course and 80 students are enrolled in a Chemistry course. There are 30 students who are taking both Algebra and Chemistry. If a student is chosen at random: (i) What is the probability that the student is taking Algebra? (ii) What is the probability that the student is taking Chemistry, given that the student is also taking Algebra? (iii) What is the probability that the student is taking Algebra, given that the student is also taking Chemistry?

 
0.2; 0.3; 0.375
0.3; 0.2; 0.375
0.25; 0.3; 0.2
0.375; 0.25; 0.3

 

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