4. 40 animals used in a medical experiment on diet deficiency include 12 monkeys, 15 dogs, and 13 mice. If two animals are chosen at random for blood tests, find the probability that they are both monkeys.

4. 40 animals used in a medical experiment on diet deficiency include 12 monkeys, 15 dogs, and 13 mice. If two animals are chosen at random for blood tests, find the probability that they are both monkeys.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: A manufacturing machine has a 3% defect rate . If 9 items are chosen at random , what is the…

A: Given data, p=3%=0.03 n=9 P(X>=1)=?

Q: If 25 percent of students at a particular school use mechanical pencils, what is the probability of…

A: Given Information: The percentage of students using mechanical pencils =25% Number of the sample…

Q: If the probability of having a female tortoise is 0.35, what is the probability of having four…

A: Given that, The probability of having a female tortoise is, p = 0.35 The no.of eggs in a nest is, n…

Q: In a recent year, 13% of businesses have eliminated jobs. If 6 businesses are randomly sampled, what…

A: Let us denote X=the number of businesses that have eliminated jobs. n=sample size=6 p=probability of…

Q: A package of self-sticking notepads contains 6 yellow, 6 blue, 6 green, and 6 pink notepads. An…

A: 6 yellow, 6 blue, 6 green, and 6 pink notepads total 24 notepads

Q: Suppose that 54% of people own dogs. If you pick two people at random, what is the probability that…

A: Given, 54% of the people own dog.That is

Q: Assume that a procedure yields a binomial distribution with a trial repeated n = 5 times. Use some…

Q: A manufacturing machine has a 6% defect rate. If 9 items are chosen at random, what is the…

Q: A study contains 31 women and 24 men. If 3 subjects are randomly selected without replacement, what…

A: Solution-: We have, Number of women =31, Number of men =24 Total number of persons (Women…

Q: In an assembly of 200 people there approximately 2% of them are civil engineers. If we randomly…

A: Givenn=200p=0.02x=no.of people being civil engineersx~Binomial(n=200,p=0.02)P(X=x)=Cxn px (1-p)n-x…

Q: When commercial aircrafts are inspected, wing cracks are reported as non-existent, detectable, or…

A: The following information has been given: The probability that planes have no wing cracks p1=0.6.…

Q: Suppose the first generation Apple iPad has 5% chance of being defective. What is the probability…

A: From the provided information, Apple iPad has 5% chance of being defective that is p = 0.05 Sample…

Q: If the probability of choosing a red chip from a bucket is 0.4, What is the probability of not…

A: We have the probability of choosing a red chip from a bucket is 0.4

Q: There is an 85% chance that a randomly selected person will take their own re-usable bags to the…

A: We have given that p = 85% = 0.85n = 20 Here we will use binomial distribution because probability…

Q: The probability that a can of paint contains contamination is 3.23% and the probability of a mixing…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule states that:

Q: If 10% of men are bald, what is the probability that fewer than 100 in a random sample of 900 are…

A: Solution:Binomial distribution approximated to normal distribution or not is checked below:It is…

Q: According to one study conducted at the University of Texas, 70% of all Americans can do routine…

A: p = 0.7 n = 8

Q: If 25 percent of students at a particular school use mechanical pencils, what is the probability of…

Q: A survey reveals that 20% of the girls are Riphah come from remote areas. If 20 Riphah Girls are…

A: Binomial distribution is discrete distribution that deals with the probabilities of success and…

Q: In a certain town, 4% of people commute to work by bicycle. If a person is selected randomly from…

A: The odds of an event A is the ratio of the number of unfavorable choices for the event to the number…

Q: Suppose that 20% of fruit flies possess a certain gene. If we randomly select 20 fruit flies, find…

A: Here given that 20% of fruit flies possess the gene. In a sample of 20 we need to find the…

Q: A group of students consisting of 20 males and 20 females were selected to participate in a research…

A: The number of male students is 20 and the number of female students is 20.

Q: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

A: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

Q: Suppose that 53% of people own dogs. If you pick two people at random, what is the probability that…

Q: A manufacturing machine has a 10% defect rate. If 9 items are chosen at random, what is the…

A: It is given that P( success ), p = 10% = 0.10Sample size, n = 9

Q: A new surgery is successful 80% of the time. If the results of 6 surgeries are randomly sampled,…

Q: In a study, 42% of adults questioned reported that their health was excellent. A researcher wishes…

A: Let us denote X=the number of people with excellent health.n=sample size=13p=probability of…

Q: A manufacturing machine has a 3% defect rate. If 10 items are chosen at random, what is the…

A: We have to find the probability that at least one will have a defect....

Q: According to the Centers for Disease Control, 8% of Americans have diabetes. If an American is…

A: Given that, according to the Centers for Disease Control, 8% of Americans have diabetes.

Q: The CDC estimates that 75%of children between 6 and 23 months old receive a flu vaccination. If 7…

A: Since, there is two possible outcomes one is succes and other is failure, and n be fixed and…

Q: university study involves a simple random sample of 26 students taken from a population of 12,550.…

A: Given that Simple random sample size (n) = 26 Population size = 12,550 Undergraduate students make…

Q: In a family of six children, what is the chance that at least three are girls?

A: Let X be the number of girl's let p be the probability of getting girl n be the sample size

Q: n a certain county in Michigan, the rate of vaccinated school-aged children is 86%. If 30 children…

A: P(Vaccinated) = p = 0.86sample size : n = 30X = Number of vaccinated childrenP(x=25) = ? Number of…

Q: When a die is rolled 80 times, the following is observed: 6 ones, 5 twos, 3 threes, 60 fours, 2…

Question

40 animals used in a medical experiment on diet deficiency include 12 monkeys, 15 dogs, and 13 mice. If two animals are chosen at random for blood tests, find the probability that they are both monkeys.

4. 40 animals used in a medical experiment on diet deficiency include 12 monkeys,
15 dogs, and 13 mice. If two animals are chosen at random for blood tests, find
the probability that they are both monkeys.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A survey showed that 76% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 14 adults are randomly selected, find the probability that at least 13 of them need correction for their eyesight. Is 13 a significantly high number of adults requiring eyesight correction?
If 2 percent of the rifles in an arsenal are defective, what is the probability that a random sample of 400 contains exactly 6 defective rifles?
Approximately 8% of males experience red-green color blindness. Suppose a random sample of 200 men is chosen.
Sixty percent of clowns aren’t funny. If you randomly encounter three different clowns, what is the probability that none of them are funny?
A hospital receives an average of 0.71 patients per day. What is the probability of receiving less than 2 patients in a randomly selected day?
A box contains 20 marbles: 5 blue, 10 red, and 5 orange. Suppose we take a sample of size 5. What is the chance that we see 1 blue, 2 red, and 2 orange?
A manufacturing machine has a 2% defect rate. If 9 items are chosen at random, what is the probability that at least one will have a defect?
Suppose that 20% of fruit flies possess a certain gene. If we randomly select 20 fruit flies, find the probability that at least 5 flies in the sample possess the gene. You may assume sampling with replacement.
In 2014, the percentage of the U.S. population that speak English only in the home is 78.9%. Choose 15 U.S. people at random. What is the probability that exactly one-third of them speak English only? At least one-third? What is the probability that at least 9 do not speak English in the home?
Suppose that 20% of fruit flies possess a certain gene. If we randomly select 20 fruit flies, find the probability that at least 7 flies in the sample possess the gene. You may assume sampling with replacement.