Let D denote that the fetus has a genetic marker for Down syndrome and N denote that ultrasound test is normal. 1 out of 80 fetuses have the genetic marker for Down syndrome. Half of those with genetic marker has a test normal. All of those without genetic marker have test normal. What is the probability if randomly selected fetus has the ultrasound test not normal will not have the genetic marker for Down syndrome? Select one: a. 1/160 b. 1 c. 0 d. 1/159

Q: 2% of the people in a certain village are infected with Covid 19 virus. If 20 people are tested,…

A: Let X denote the number of people infected with Covid 19 virus.

Q: What is the probability that at most 4 out of 5 selected offspring will have two recessive genes

A: here p=0.25 n=5 here use binomial distribution each trial independent finite number of trial there…

Q: Suppose that 1 out of 1000 people tin a population have a particular disease. A test is developed…

A: It is given that 1 out of 1000 people in a population have a particular disease.

Q: A random sample of two Americans is selected. The probability that neither will have type O blood is

A: Solution-: We have following table: We find the the probability that neither will have type O blood…

Q: 10.6% of the population is 65 or older. Find the probability that the following number of persons…

A:

Q: efer to the sample data for pre-employment drug screening shown below. If one of the subjects is ran…

A: Contigency Table   Positive Result Negative Result Total Subject Uses Drugs 46 10 56 Non-Drug…

Q: A certain affects virus 0.1% of the population. A test used to detect the virus in a person is…

A: Solution

Q: The number of new categories added each year to a major engineering handbook has been found to be a…

A: (i) Consider a random variable X which represents the number of categories that will be added each…

Q: A police officer uses a breathalyzer to test the blood alcohol content of drivers suspected of a…

A: We have the null and alternative hypothesis as follows H0 : The driver is not drunk.   Ha : The…

Q: Question 8 Suppose that in a small island, all families have either 0, 1, or 2 children with…

A: Given  P(X=0)=P(Y=0)=0.3  P(X=1)=P(Y=1)=0.4  P(X=2)=P(Y=2)=0.3

Q: What is the probability that from the sample, less that 80.5% of them own a cell phone? 0.2033 What…

A: Let p be the population proportion of adults who own cell phones. Given that, Population proportion…

Q: Suppose a shipment of 180 electronic components contains 3 defective compoents. To determine whether…

A: The probability that the shipment is rejected is obtained below: The total number of electronic…

Q: Al b. In a town with 10.000 populations, they got a call to test a certain disease that has an…

A: Consider the events, D=a person has the diseaseP=test shows positiveN=test shows negative Since the…

Q: There is a .65 probability of someone passing the certification exam for public health…

A: Given Information: There is a 0.65 probability of someone passing the certification exam for public…

Q: A certain virus infects 5% of the population . A test used to detect the virus in  a person is…

A: Given that: A certain virus infects 5% of the population. Let “A” be the event infected by the virus…

Q: The probability that Mr. Adam comes across a red light is 0.45 at any intersection. What is the…

A:

Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…

A: Given Information:

Q: The probability that a person has a negative side effect from a medication is .08. Suppose you treat…

A: Given, The probability that a person has a negative side effect from a medication is .08 (p) = 0.08…

Q: A biologist is studying the plant diversity in 15 million acres of the Sierra Nevada Mountains. He…

A: The answer is given in below image:

Q: Suppose that the proportions of blood phenotypes in a particular population are as follows: A АВ…

A: Consider that the phenotypes of two randomly selected individuals are independent of one another The…

Q: According to studies, 3% of all patients who undergo a laser surgery (i.e. LASIK) to correct their…

A: Given information: A random sample of n = 100000 LASIK patients is considered. The probability of…

Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…

A: Given:Positive Test resultNegative Test resultSubjct Uses Drugs4513Subject is not user of drug236

Q: If the test diagnosed the disease, what is the probability that you actually have it?

A: Here use probability tree from given information

Q: Bricks manufactured in a kiln are weighed every day to check them against the design weight. The…

A: Let us denote X=the number of bricks weighing less than the design weight n=sample size= 12…

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A: A B C Total Male 15 2 16 33 Female 9 5 18 32 Total 24 7 34 65

Q: If a hypothesis test is found to have power = 0.80, which is the probability that the test will…

A: Given that, hypothesis test is found to have power = 0.80

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A:

Q: The proportion of individuals that regularly smoke in a population is known to be 0.25. What is the…

A: Given information: p=0.25 Sample size, n=100

Q: B. Solve. SHOW YOUR SOLUTIONS. The average number of milligrams (mg) of cholesterol in a cup of a…

A: B) Solution: Given information: n= 10 Sample size  μ= 660 Population mean σ= 35 Population standard…

Q: A company recruits 750 men under the age of 55. Suppose that 35% carry a marker on the male…

A: Givenp=0.35n=15x~Binomial(n=15,p=0.35)P(X=x)=(nx)×px×(1-p)n-x   ; x=0,1...,n

Q: The probability of randomly selecting a green marble from a bag of 20 marbles is 1/20. Which of the…

A: Here we need to choose from the correct option, whether the given outcome is likely, unlikely or…

Q: A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke),…

A: Given:   Smoke Not smoke Total 18 - 22 40 160 200 23-30 31 99 130 31-40 30 70 100 Total…

Q: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

A: Given: For California: Mean,μ=22Std deviation,σ=4Sample size, n=30 For New York: Mean,μ=42Std…

Q: A farmer has planted 11 new lemon trees of a special breed where the probability that the tree will…

A: Obtain the probability that less than 3 trees remain without fruits by the end of the upcoming…

Q: ssume that 33.2​% of people have sleepwalked. Assume that in a random sample of 1454 ​adults, 523…

A: Given: The population proportion of people who sleepwalked, P = 0.332            Sample size, n =…

Q: A researcher wants to find the factors affecting the probability that a person suffers from heart…

A: The given logit regression isSample size is

Q: A test of 100 motor is done to determine the defective motors. The probability that a motor is…

A:

Q: Alex makes mistakes in a with an average of 1.2 mistakes per class. In a given class, what is the…

A: Given that  Average =λ=1.2 Here we use poisson probability distribution.  P(X=x) =e-λ*λx/x!       X=…

Q: Suppose a lung cancer test is 85% sensitive and 93% specific. That is, the test will produce 85%…

A:

Q: The prevalance of mild myopia (nearsightedness) in adults over age 40 is 27% in the US. Suppose…

A: Given: p = 0.27 n = 8 x = 3 Formula Used: Binomial distribution: X~B(n, p) P(X=x) = Cxnpxqn-xE

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.