A class consists of 25 students of which 10 are girls are 15 are boys; 4 girls and 6 boys were put in first class in an examination. If a student is selected at random from the class and is found to have first class, what is the probability that the student selected is a girl. How is this probability affected if the distribution of boys and girls in the whole class is unknown?

A class consists of 25 students of which 10 are girls are 15 are boys; 4 girls and 6 boys were put in first class in an examination. If a student is selected at random from the class and is found to have first class, what is the probability that the student selected is a girl. How is this probability affected if the distribution of boys and girls in the whole class is unknown?

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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