Asked by Helen
Ali has 250 songs on her MP3 player. Of those, 150 are dance songs, 50 are R&B songs, and 30
songs are both dance and R&B.
1) when Ali has her player on shuffle, what are the odds in favour of her hearing a dance song that is not an R&B song?
2) what are the odds against her hearing a song that is both dance and R&B?
songs are both dance and R&B.
1) when Ali has her player on shuffle, what are the odds in favour of her hearing a dance song that is not an R&B song?
2) what are the odds against her hearing a song that is both dance and R&B?
Answers
Answered by
PsyDAG
First of all, 150 + 50 + 30 ≠ 250
With that:
1) 50/250 = ?
2) 1 - 30/250 = ?
With that:
1) 50/250 = ?
2) 1 - 30/250 = ?
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