11 b and d
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.9: Independent And Dependent Events
Problem 13E
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Question
11 b and d
Transcribed Image Text:Probability Lesson #6: Probability Involving Permutations and Combinations
11. Elizabeth has 30 songs on her MP3 player: 15 in the "Pop" genre, 10 in the "Country
genre, and 5 in the "Alternative" genre. She generates a random playlist of 9 songs.
Determine, as a percentage to the nearest tenth, the probability that the playlist
a) contains 6 pop songs and 3 country songs
b) contains exactly 6 pop songs
GPop + 3 conb
15 C6X10(3 =0.041= 4.2)
c) contains 3 songs from each genre
d) starts and ends with a pop song
3 pop +3 contgoBalk.
E0008 = 3.87.
12. A company's database requires a three-digit access code. Victor remembers the three
digits in the code, but not the order in which they are arranged.
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