- #1
jaxnnux
- 7
- 0
Hello Gentlemen,
Here's a statistical question for you:
A man and a woman mate to produce a child that either has blue eyes (B) or green eyes (b), where blue eyes are dominant to green eyes.
As you remember from biology, there are 3 different possibilities for the genotype - BB, Bb, or bb.
The probabilities are 1:2:1 for BB:Bb:bb.
Thus, the chance for the child to have blue eyes is 3/4 and green eyes is 1/4.
Ok, I'm getting to the question now. The couple decides to have 2 children. What is the probability that the 2 children will have the same appearance and be of the same sex?
Here's what I think the answer is:
green eyes: (0.5*0.5*0.25*0.25)*100% = 1.5%
blue eyes:
(0.5*0.5*0.75*0.75)*100% = 14.1%
Is this correct? Thanks.
Here's a statistical question for you:
A man and a woman mate to produce a child that either has blue eyes (B) or green eyes (b), where blue eyes are dominant to green eyes.
As you remember from biology, there are 3 different possibilities for the genotype - BB, Bb, or bb.
The probabilities are 1:2:1 for BB:Bb:bb.
Thus, the chance for the child to have blue eyes is 3/4 and green eyes is 1/4.
Ok, I'm getting to the question now. The couple decides to have 2 children. What is the probability that the 2 children will have the same appearance and be of the same sex?
Here's what I think the answer is:
green eyes: (0.5*0.5*0.25*0.25)*100% = 1.5%
blue eyes:
(0.5*0.5*0.75*0.75)*100% = 14.1%
Is this correct? Thanks.