A his.y class is comprised of 4 female and s male students. If the instructor of the class randomly chooses 7 students from the class for an oral exam, what is the probability that 3 female students and 4 male students will be selected? Round your answer to 3 decimal places. (If necessary, consult a list of formulas.)
A his.y class is comprised of 4 female and s male students. If the instructor of the class randomly chooses 7 students from the class for an oral exam, what is the probability that 3 female students and 4 male students will be selected? Round your answer to 3 decimal places. (If necessary, consult a list of formulas.)
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 4 females and 5 males, so total number of students are . Among these 9 students 7 are selected randomly. So the total number of possible outcomes will be equal to number of ways to select 7 students out of 9 students.
The number of ways to select r objects from n objects is computed by .
Substitute in the above mentioned formula to find the total number of outcomes.
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