The national proportion of adults who are concerned about nutrition is 0.4. You take a random sample of 10 adults and count the number who are concerned about nutrition (call it X). What is the probability that X is at least 2?

Q: A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of…

A: Given :70% of all adults over 50 wear glasses for driving

Q: The joint probability distribution of variables X and Y is shown in the table below, where X is the…

A: The given information is: PXY0,0=0.13 , PXY0,1=0.16 , PXY0,2=0.07PXY1,0=0.08 , PXY1,1=0.14 ,…

Q: Use the probability distribution for the random variable x to answer the question. 2 3 4 p(x) 0.12…

A:

Q: The table shows the number of residents who prefer to listen to certain types of music. Females…

A:

Q: What is the probability that the random variable has a value greater than 5? B) 0.250 A) 0.375 C)…

A: From the uniform density curve the probability density function is, fx=0.125     ;  0<x<8

Q: Suppose, a researcher wants to conduct a study to determine whether drinking alcoholic beverages has…

A: No. of alcoholics drinks Ulcer No Ulcer Total None A=32 21 B=53 one-two 41 C=37 78 more than…

Q: Based on her experience, a professor knows that the probability distribution for X number of…

A: Consider the given information.

Q: The z value, such that the probability of obtaining a lower z value is 0.025, is ?. The z value,…

A: Let X be the required value a) To find: X Probability of obtaining a lower z…

Q: [Q3] A sample of 200 people are classified as below. If a person is picked at random from this…

A: Total no: of persons, n=250 M-male F-female no: of male, n(M)=128 no: of female, n(F)=122…

Q: A geologist has collected 12 specimens of basaltic rock and 12 specimens of granite. The geologist…

A: (a) There are 12 specimens of basaltic rock and 12 specimens of granite. A Laboratory assistant…

Q: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A: Given that, 70% of all adults over 50 wear sunglasses for driving. Sample size = 10

Q: Use what you know about probability distributions to find the missing probability of 3. 2 3 P(x)…

A: The table given in the problem represents the probability distribution from x=0 to x=3. The sum of…

Q: What is the probability that there is exactly one car during a cycle? Exactly one bus? y ue La…

A:

Q: - The average number of matches where the football matches of the Galatasaray football team were…

A: See the hand written solution

Q: the probability distribution of the number  of motorcycles owned by a family(x) is as follows x 0 1…

A: It is given that the probability distribution of the number of motorcycles owned by a family.

Q: The random variable X, representing the number of cherries in a cherry puff, has the following…

A: Random variable X: the number of cherries in a cherry puff probability distribution of X; x 4 5 6…

Q: A1. b. In a town with 10,000 populations, they got a call to test a certain disease that has an…

A: Given : Total Population = 10,000 Incidence rate = 4% Therefore, Probability that the person has…

Q: At Roberta's cafe half of her regular customers order her famous low-fat chicken sandwich. The…

A: Consider the following events A : someone regularly ordered the sandwich. B : someone losing weight.…

Q: The number of courses (X) that Sacramento City College sociology students are enrollec in this…

A: Multiple questions:   Hello! As you have posted 2 different questions, we are answering the first…

Q: 3. The table below summarizes results from an experiment studying the number of mosquito larvae that…

A:

Q: Use the probability distribution for the random variable x to answer the question. 2 3 4 p(x) 0.12…

A:

Q: The following data show the probabilities for the number of cars sold in a given day at Alex's car…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The following data show the probabilities for the number of cars sold in a given day at Alex's car…

A:

Q: A group of people studied the relationship of smoking habits and hypertension. The data below have…

A: Let M be the event that the person is a moderate smoker and the event NH be the person is…

Q: (d) Find the probability that the proportion of the sampled adults who drink coffee daily is between…

A:

Q: A cafe receives an average of 4 orders of Mocha Frappe every 5 minutes. What is the probability of…

A: Poisson distribution : The random variable x defines number of events that occur in an interval…

Q: The average number of calls per minute received by a telephone switchboard is 120. What is the…

A:

Q: If the population proportion is 0.90 and a sample of size 64 is taken, which is closest to the…

A:

Q: The following data show the probabilities for the number of cars sold in a given day at Alex's car…

A:

Q: (SR 7.19) According to a Gallup poll, 63% of concession stand workers like the smell of their…

A: Here use normal approximation because sample size is too large

Q: Years of data tells us that 27% of houses have a 2 car garage. In a sample of size 40, what is the…

A: Obtain the probability that the more than 20% of the houses have a 2 car garage. The probability…

Q: In a recent survey of 25 voters, 17 favor a new city regulation and 8 oppose it. What is the…

A: Explanation of the answer is as follows

Q: A car insurance company tracks how long it takes for it takes a new car owner to get into their…

A:

Q: C: The probability of being salt-resistant if it is unsuitable for use ? *

A: Q2: C. There are 200 bags are unsuitable for use in which half of the unsuitable for use is of the…

Q: The table below is a legitimate probability model for the number of cars in a randomly-selected…

A: Let , the random variable X be the number of cars in a randomly selected household in the United…

Q: In a large on-the-job training program, half of the participants are female and half are male. In a…

A: We use Binomial Distribution to solve this problem. Let success denotes investigator will draw a…

Q: In the 2010 U.S. Census, one of the questions asked was “How many people live in your household?”…

A: Here the given distribution is discrete. We need probability of no more than 4 living in a randomly…

Q: Mendelian Genetics When Mendel conducted his famous genetics experiments with peas, one sample of…

A: Given that,No.of green peas = 428No.of yellow peas = 152So, total no.of peas = 580

Q: The following table lists the probability distribution of the number of patients entering the…

A: Introduction: The random variable of interest is X, which denotes the number of patients entering…

Q: (b) What is the probability of a patient waiting for more than 38 minutes? Determine the value of a…

A: Given : The waiting time at the doctor's office has a normal distribution with a mean of 35 minutes…

Q: The probability that a statistics graduate from a Canadian university gets a data science job is…

A: Given that  Number of trials n=10 Success of probability p=0.6 X~Binomial ( n,p) Probability mass…

Q: d. What are E(X) and V(X)? e. In a sample of 50 children, what is the probability that none has a…

A:

Q: The average number of matches where the football matches of the Galatasaray football team were…

A:

Q: A group of people studied the relationship of smoking habits and hypertension. The data below have…

A:

Q: The following data show the probabilities for the number of cars sold in a given day at Alex's car…

A:

Q: Suppose that the probability function in the table below reflects the possible lifetimes (in months…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: The Laurier Company's brand has a market share of 30%. Suppose that 1,000 consumers of the product…

A:

Q: On the average the traffic pattern at an intersection is as follows: • Twice as many cars go through…

A: Let us assume  The number of cars= c The number of vans= v The number of bicycles= b The number of…

Q: In a large on-the-job training program, half of the participants are female and half are male. In a…

A: P(Male) = 0.5 X denotes the number of male X follows Binomial Distribution

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.