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kvv77 [185]
3 years ago
9

There are eleven songs on your playlist. five of them are country and six are pop. with random shuffle and no repetition, you li

sten to five songs. what is the probability that you listened to all country songs?
Mathematics
1 answer:
jek_recluse [69]3 years ago
3 0
The probability is 1/462.

To find this, we will find the number of combinations of 5 country songs taken 5 at a time, 6 pop songs taken 0 at a time, and the total number of outcomes will be 11 songs taken 5 at a time:

\frac{_5C_5\times_6C_0}{_{11}C_5}
\\
\\\frac{\frac{5!}{5!0!}\times\frac{6!}{0!6!}}{\frac{11!}{5!6!}}=\frac{1\times1}{\frac{11!}{5!6!}}
\\
\\=\frac{1}{462}
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