Question

The probability that a girl has dark hair is 0.7, the probability that she has blue...

The probability that a girl has dark hair is 0.7, the probability that she has blue eyes is 0.4and the probability that she has both dark hair and blue eyes is 0.2.

a)find the probability that a girl has neither dark hair nor blue eyes.

b)find the probability that a girl either has dark hair or blue eyes but not both.

c)find the probability that a girl has blue eyes but not dark hair.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Let A be the event that a girl has dark hair.

Therefore P(A)=0.7

B be the event that she has blue eyes.

P(B)=0.4

Probability that she has both dark hair and blue eyes is

a. The probability that a girl has neither dark hair nor blue eyes is given by

b. The probability that a girl either has dark hair or blue eyes but not both is given by:

Thus the required probability is 0.7

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a particular class, the probability of a student having blue eyes is 0.3, of having...
In a particular class, the probability of a student having blue eyes is 0.3, of having both blue eyes and blonde hair is 0.2, and of having neither blue eyes nor blonde hair is 0.5. What is the probability that a student in this class has blonde hair? a) 0.5 b) 0.2 c) 0.3 d) 0.1
George has dark colored eyes, blond hair, and no freckles. He mates with Susie who has...
George has dark colored eyes, blond hair, and no freckles. He mates with Susie who has blue eyes, dark hair and freckles. Susie's mother had blue eyes, blond hair and freckles and her father had dark eyes, dark hair and no freckles. The genes for these traits assort independently. The dominance relationships of the alleles are as follows:           E = dark eyes         H = dark hair                    F = freckles      e = blue eyes h = blond hair f = no freckles...
b) The probability that a manager reads the Daily Telegraph is 0.7. The probability that she...
b) The probability that a manager reads the Daily Telegraph is 0.7. The probability that she reads the Daily Telegraph but not the Financial Times is 0.6. The probability that she reads neither is 0.2. Find the probability that she reads the Financial Times only.
A couple has tree children, all of whom have blue eyes and blond hair. Both parents...
A couple has tree children, all of whom have blue eyes and blond hair. Both parents are homozygous for blue eyes(bb), and have brown hair (Rr). Which hair color allele is dominat?----------How is it possible for their three children to all have blonde hair? What is the probability that their next child will be blue eyed and have brown hair? Show how you arrived at your answers.
28. From the below cross classification showing the frequencies of hair and eye color of a...
28. From the below cross classification showing the frequencies of hair and eye color of a group of staff at ABC company, and answer the following questions (a-d). Eye Color Hair Color Brown Blue Green Hazel Total Blond 30 20 7 3 60 Brown 74 28 10 7 119 Red/Auburn 17 15 5 4 41 Black 43 11 5 1 60 Total 164 72 27 14 280 a)The probability that a staff will have blue eyes given he/she is blond....
Suppose that in a certain population, 18% have green eyes and 25% have blonde hair. In...
Suppose that in a certain population, 18% have green eyes and 25% have blonde hair. In addition, 11% of people have green eyes and blonde hair. Let G represent the event that a person has green eyes, and B represent the event that a person has blonde hair. In each part of this question, you must first express each probability in terms of the events G and B and justify any computation through the use of a formula. (a) Express...
Red hair in humans is recessive, whereas dark hair is dominant, Suppose that a red-haired male...
Red hair in humans is recessive, whereas dark hair is dominant, Suppose that a red-haired male and a heterozygous female have a male child who then mates with a heterozygous female. a) What is the probability that the grandchild is pure dark-haired? b) What is the probability that the grandchild is dark-haired? c) What is the probability that the grandchild is red-haired?
Sharon and Shauna are monogotic twins. They both have blonde hair, but Sharon has green eyes...
Sharon and Shauna are monogotic twins. They both have blonde hair, but Sharon has green eyes and Shauna has blue eyes. Sharon and Shauna are ____ for eye color. Select one: a. Concordant b. Discordant
From a box containing 10 balls of red, 30 of white, 20 of blue and 15...
From a box containing 10 balls of red, 30 of white, 20 of blue and 15 of orange, 5 are drawn at random. Find the probability that: a) All be white b) They are red, white or blue c) They are neither red nor blue
A woman has just had twins, a boy and a girl. The woman’s father has two...
A woman has just had twins, a boy and a girl. The woman’s father has two X-linked recessive disorders, haemophilia and colour-blindness, but the woman is unaffected. The father of the children has neither disorder. Both disorders are completely penetrant. The loci for the two traits are known to be 5cM apart. a) What is the probability that the boy will be colour-blind but not haemophilic? Explain your answer, including showing the genotypes and phenotypes of the family. [10 marks]...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT