What is the probablity that the first two songs played are songs that you like?
January 12th, 2009 | by songs |
slc10112 asked:
It’s for my STAT Class:
It’s for my STAT Class:
You have purchased a CD with 10 tracks, only 3 of which have songs that you like. Your CD player will randomly select and play each of the songs once. (A song will not be replayed before all songs have been played once.)
What is the probablity that the first two songs played are songs that you like?
What is the probablity that the first two songs played are songs that you don’t like?
BRADY
7 Responses to “What is the probablity that the first two songs played are songs that you like?”
By Caire on Jan 13, 2009 | Reply
GLENN
Do your own homework please.
By mymousewillnoteat on Jan 15, 2009 | Reply
CAMERON
3/10*2/9=1/15
By mike p on Jan 17, 2009 | Reply
GARRY
what did you sleep through class. Do your own homework please
By Lok1220 on Jan 19, 2009 | Reply
AMADO
1) 3/10 x 2/9 = 6/90=1/15
2) 7/10 x 6/9 = 42/90 = 7/15
That’s more of an educated guess, so don’t stake your life on it.
By David on Jan 22, 2009 | Reply
FRED
The probability that the first song is a song that you like is 3/10.
Given that, the probability that the second song is a song you like is 2/9.
The probability of both songs being songs you like would be 3/10 x 2/9, which is 6/90 or 1/15.
The probability that the first song is a song you don’t like is 7/10.
Given that, the probability that the second song is a song you don’t like is 6/9 or 2/3.
The probability of both songs being song you don’t like would be 7/10 x 2/3, which is 14/30 or 7/15.
By gjmb1960 on Jan 23, 2009 | Reply
CLARENCE
3/7 * 2/ 7
By msk on Jan 24, 2009 | Reply
CEDRICK
i know that the probability of them being played in the order they are in on the cd is 1/3628800.