# Statistics

Achusband and wife with brown eyes who have 0.75 probability of having children with brown eyes, 0.125 probability of having children with blue eyes, and 0.125 probability of having children with green eyes.

(a) What is the probability that their ﬁrst child will have green eyes and the second will not?

Is it 0.1094?

(b) What is the probability that exactly one of their two children will have green eyes?

Is it 0.2188?

(c) If they have six children, what is the probability that exactly two will have green eyes?

Is it 0.1374?

(d) If they have six children, what is the probability that at least one will have green eyes?

Is it 0.5512?

(e) What is the probability that the ﬁrst green eyed child will be the 4th child?

Is it 0.0837?

(f) Would it be considered unusual if only 2 out of their 6 children had brown eyes?

Yes, because the probability that exactly two have brown eyes given a sample size of 6 is very small and thus unlikely (3.03%). Also, note that there is a 0.75 probability (high prob) of having brown eyes children.

1. 👍 0
2. 👎 0
3. 👁 836

## Similar Questions

1. ### Probability

Lavonne’s mother has brown eyes, and her father has blue eyes. Lavonne has brown eyes, and her husband has blue eyes. She knows that her children are equally likely to have brown or blue eyes. What is the probability that her

asked by Laura on May 12, 2015
2. ### Math

Lavonne’s mother has brown eyes, and her father has blue eyes. Lavonne has brown eyes, and her husband has blue eyes. She knows that her children are equally likely to have brown or blue eyes. What is the probability that her

asked by Anonymous on May 12, 2015
3. ### Math: Is my answer correct?

I am not sure how to do this, just guesssing. A couple has a 2/3 probability of passing on brown eyes to their children. If they have four children, what is the probability that none of the children will have brown eyes? A) 8/27

asked by bwb on May 2, 2010
4. ### Biology

In humans, the allele for brown eyes is dominant to the allele for blue eyes. If a man with blue eyes and a woman with brown eyes who is homozygous for eye color have children, what is the probability of having a child with blue

asked by Tatiana on November 26, 2014
5. ### Biology - Genetics

What is the expected genotypes and phenotypes of F1 flies in the cross between virgin brown eyed female with scarlet males (genes for brown and scarlet eyes are on different autosomes)? I know that brown eyes and scarlet eyes are

asked by Annie on February 23, 2015
1. ### math

There are x students in Mrs. Schwartz's third-grade class. One less than half the students have blue eyes. Six fewer children have green eyes than have blue eyes. The rest of the students have brown eyes. How many students have

asked by Tomas on November 14, 2013

Can you check please. 1. Melvin had 20 children in his kindergarten class. Two-fifths of the children had brown eyes. Onefourth of the children had blue eyes. The rest had hazel eyes. How many children had hazel eyes? 20(2/5) = 8

asked by Jared on February 1, 2017
3. ### science

Why do I have brown eyes? The genes we inherit from our parents determine things like our height, looks, hair color and eye color. This passing of characteristics from parent to child is called heredity. If your mother has brown

asked by HERSHEYS on April 19, 2007
4. ### A & P

Assume that the allele controlling brown eyes (B) is dominant over that controlling blue eyes (b) in human beings. (In actuality, eye color in humans is an example of multigene inheritance, which is much more complex than this.) A

asked by carmen on July 21, 2009
5. ### statistics

Find the probability that among six randomly selected people, exactly four of them have brown eyes. Assume that 40% of the population has brown eyes

asked by mike on February 9, 2014

More Similar Questions