There are 12 students in my class - 10 males and 2 females. a. If I pick a team of 5 students randomly to answer a difficult question, what is the probability that there is at least 1 female in my team? b. I have 1 difficult question per lecture. If I pick a student randomly to answer this difficult question in every lecture, what is the probability that I will pick a female at least once in my next 5 lectures? A student previously picked can be picked again.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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There are 12 students in my class - 10 males and 2 females.

a. If I pick a team of 5 students randomly to answer a difficult question, what is the probability that there is at least 1 female in my team?

b. I have 1 difficult question per lecture. If I pick a student randomly to answer this difficult question in every lecture, what is the probability that I will pick a female at least once in my next 5 lectures? A student previously picked can be picked again.

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