SOLUTION: Of 20 animals in a shelter, 12 are dogs, what is the probablity that 2 animals chosen at random are both dogs?
Algebra.Com
Question 663398: Of 20 animals in a shelter, 12 are dogs, what is the probablity that 2 animals chosen at random are both dogs?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Of 20 animals in a shelter, 12 are dogs, what is the probablity that 2 animals chosen at random are both dogs?
-----
# of ways to succeed: 12C2 = 66
-----
# of possible outcomes: 20C2 = 190
-----
P(2 dogs) = 66/190
============
Cheers,
Stan H.
RELATED QUESTIONS
Jacob and Ashley run an animal shelter that houses only cats and dogs. The ratio of cats... (answered by greenestamps)
Jacob and Ashley run an animal shelter that houses only cats and dogs the ratio of cats... (answered by Boreal)
Six cats and seven dogs are in the local animal shelter. Four animals are chosen at... (answered by greenestamps)
Hello, I'm having problems with these and I need sort of explaination on how to solve... (answered by mathmate)
ANIMALS The total number of cats and dogs at the shelter is 125. There are 5 more cats (answered by math_tutor2020,greenestamps,ikleyn,josgarithmetic)
Hello, I'm having problems with these and I need sort of explaination on how to solve... (answered by Boreal)
The ratio of number of cats and number of dogs in a animal shelter is 5:4. There are a... (answered by Alan3354)
there are 100 animals in a shleter, some are dogs, some are birds. there are 360 total... (answered by mananth)
THe animal shelter has only dogs and cats. There are 25% more dogs than cats. What... (answered by stanbon)