Question 3) 1 out of 1000 births results in fraternal twins; 1 out of 1500 births...
Question 3)
1 out of 1000 births results in fraternal twins; 1 out of 1500 births results in identical twins. Identical twins 1
must be the same sex but the sexes of fraternal twins are independent and we assume each sex the probability is 2.
Part A. Build the corresponding tree diagram.
Part B. If two girls are twins, what is the probability they are
fraternal twins?
Part C. If there are 5 sets of twin girls, what is the probability
that at least four of the sets are identical twins?
Homework Answers
Add Answer to:
Question 3)
1 out of 1000 births results in fraternal twins; 1 out of 1500
births...
1 out of 1000 births results in fraternal twins; 1 out of 1500 births results in...
1 out of 1000 births results in fraternal twins; 1 out of 1500 births results in identical twins. Identical twins must be the same sex but the sexes of fraternal twins are independent and we assume each sex the probability is 1/2 ; If there are 5 sets of twin girls, what is the probability that at least four of the sets are identical twins?
Identical twins come from a single egg that split into two embryos, and fraternal twins are...
Identical twins come from a single egg that split into two embryos, and fraternal twins are from separate fertilized eggs. Also, identical twins must be of the same sex and the sexes are equally likely, and sexes of fraternal twins are equally likely. If a pregnant woman is told that she will give birth to fraternal twins, what is the probability that she will have one child of each sex? Use the data table below to find the probability. boy/boy ...
The accompanying table displays results from experiments with polygraph instruments. a. Find P(subject told the truth...
The accompanying table displays results from experiments with polygraph instruments. a. Find P(subject told the truth negative test result). b. Find P(negative test result subject told the truth). c. Compare the results from parts a. and b. Are they equal? Click the icon to view the data table. a. P(subject told the truth | negative test result) = (Round to three decimal places as needed.) b. Find the probability of selecting a subject with a negative test result, given that...
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) thr...
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) through (d) below se EEE Click the icon to view the table. Ho a. Find the probability of getting exactly 6 girls in 8 births Type an integer or a decimal. Do not round.) b. Find the probability of getting 6 or more giris in 8 births 5/ Type...
8. Read problem 3.15 (pages 67-68) and then answer the questions below. a. What proportion in...
8. Read problem 3.15 (pages 67-68) and then answer the questions below. a. What proportion in the sample had a culture test? What proportion had the Strep A OIA test? What are the probabilities of outcomes in the sample for those with the Culture test? What are the probabilities of outcomes in the sample for those with the Strep A OIA test? Make a tree to illustrate the probabilities in a-b-c. b. c. d. Use numbers in the tree to...
Please help me understand how to do a tree diagram. Thanks! 1/22/2019 M243-Ch.3 HW 29.-/12 points...
Please help me understand how to do a tree diagram.
Thanks!
1/22/2019 M243-Ch.3 HW 29.-/12 points When the Euro coin was introduced in 2002, two math professors had their statistics students test whether the Belgian one Euro coin was a fair coin. They spun the coin rather than tossing it and found that out of 250 spins, 150 showed a head (event H) while 100 showed a talil (event T). On that basis, they claimed that it is not a...
Question 3 of 26 (3 points) Attempt 1 of Unlimited View question in a popup 8.2...
Question 3 of 26 (3 points) Attempt 1 of Unlimited View question in a popup 8.2 Section EX Baby weight: Following are weights, in pounds, of 10 two-month-old baby girls. It is reasonable to assume that the population is approximately normal. 12.23 12.32 14.13 9.34 11.48 8.63 12.66 10.30 12.34 12.95 Send data to Excel Part: 0/2 Part 1 of 2 Construct an 80% interval for the mean weight of two-month-old baby girls. Round the answers to three decimal places....
Week#5: Question 1: A team of 10 members, 3 are men and 7 are women. A...
Week#5: Question 1: A team of 10 members, 3 are men and 7 are women. A committee of 4 people will be chosen randomly. What is the probability that the committee will have atleast two men on it? Question 2: In this experiment, you flip a fair coin four times. Make a tree diagram of this experiment. What is the probability that out of four coin tosses, you get exactly two heads in a row?
Epigenetics Video: Please go to the link for the video on D2L on epigenetics and then answer the questions: Y...
Epigenetics Video: Please go to the link for the video on D2L on epigenetics and then answer the questions: You may need to watch the video more than once to find the answers. Answer the following questions. Twins: 1. What is one reason why identical twins may not look or act the same? 2. Why would one twin having a disease make it more likely for the other twin to have the disease? 3. Why would they not always have...
1. 2. 3. 4. A sample of human brain volumes (cm) is given below. Use...
1.
2.
3.
4.
A sample of human brain volumes (cm) is given below. Use the given data values to identify the corresponding z scores that are used for a normal quantile plot, then identify the coordinates of each point in the normal quantile plot. Construct the normal quantile plot, then determine whether the data appear to be from a population with a normal distribution. 1063 1028 1040 1078 1444 1070 969 1078 List the z scores for the...
The accompanying table displays results from experiments with polygraph instruments. a. Find P(subject told the truth negative test result). b. Find P(negative test result subject told the truth). c. Compare the results from parts a. and b. Are they equal? Click the icon to view the data table. a. P(subject told the truth | negative test result) = (Round to three decimal places as needed.) b. Find the probability of selecting a subject with a negative test result, given that...
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) through (d) below se EEE Click the icon to view the table. Ho a. Find the probability of getting exactly 6 girls in 8 births Type an integer or a decimal. Do not round.) b. Find the probability of getting 6 or more giris in 8 births 5/ Type...
8. Read problem 3.15 (pages 67-68) and then answer the questions below. a. What proportion in the sample had a culture test? What proportion had the Strep A OIA test? What are the probabilities of outcomes in the sample for those with the Culture test? What are the probabilities of outcomes in the sample for those with the Strep A OIA test? Make a tree to illustrate the probabilities in a-b-c. b. c. d. Use numbers in the tree to...
Please help me understand how to do a tree diagram.
Thanks!
1/22/2019 M243-Ch.3 HW 29.-/12 points When the Euro coin was introduced in 2002, two math professors had their statistics students test whether the Belgian one Euro coin was a fair coin. They spun the coin rather than tossing it and found that out of 250 spins, 150 showed a head (event H) while 100 showed a talil (event T). On that basis, they claimed that it is not a...
Question 3 of 26 (3 points) Attempt 1 of Unlimited View question in a popup 8.2 Section EX Baby weight: Following are weights, in pounds, of 10 two-month-old baby girls. It is reasonable to assume that the population is approximately normal. 12.23 12.32 14.13 9.34 11.48 8.63 12.66 10.30 12.34 12.95 Send data to Excel Part: 0/2 Part 1 of 2 Construct an 80% interval for the mean weight of two-month-old baby girls. Round the answers to three decimal places....
Epigenetics Video: Please go to the link for the video on D2L on epigenetics and then answer the questions: You may need to watch the video more than once to find the answers. Answer the following questions. Twins: 1. What is one reason why identical twins may not look or act the same? 2. Why would one twin having a disease make it more likely for the other twin to have the disease? 3. Why would they not always have...
1.
2.
3.
4.
A sample of human brain volumes (cm) is given below. Use the given data values to identify the corresponding z scores that are used for a normal quantile plot, then identify the coordinates of each point in the normal quantile plot. Construct the normal quantile plot, then determine whether the data appear to be from a population with a normal distribution. 1063 1028 1040 1078 1444 1070 969 1078 List the z scores for the...
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