Posted by Priya on .
The population of the three species is shown below.
Species Population Male Female
Bullfrog 30% 60% 40%
SpringPeeper 50% 55% 45%
Mink Frog 20% 52% 48%
Determine the probability that the first two frogs captured are
a) bullfrogs b) female bullfrogs
c) females of any species
d) frogs that are not spring peepers
Then design a stimulation that will allow you to construct a probability distribution for the number of bull frogs in a sample of 30 frogs. Use it to predict the probability that the sample will have eight or more bullfrogs.

Math 
PsyDAG,
Eitheror probability is found by adding the individual probabilities. When you are concerned with the probability that all/both the events would occur, you multiply the individual probabilities.
I will demonstrate with b.
Probability of getting a female bullfrog is .3 * .4 = .12. For the second, it is the same, so the probablity for both is .12 * .12 = .0144.
This should get you started. I hope this helps. Thanks for asking.