In a certain state, pickup trucks account for 26% of the state's registered vehicles. If 300 registered vehicles are selected at random, what is the expected number of pickup trucks?

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

A: The number of female students is 20. Thus, the total number of students is 20+20 = 40.

Q: Of all the weld failures in a certain assembly, 85% of them occur in the weld metal itself, and the…

A: Random Variable: In probability theory, a random variable is a variable whose values depend on…

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 The number of female students is 20. The total number of students…

Q: Consider a randomly selecting 4-cards from a standard 52-card deck. Let the random variable, X,…

A: Solution

Q: Suppose 3 ​quarters, 3 ​dimes, 9 ​nickels, and 6 pennies are in a box. One coin is selected at…

A: Using the given data we make a table: Coin(amount in cent) (xi) quarter(25) dime(10) Nickels(5)…

Q: what is the probability that at least 1 defective card is in the sample?

A: Let , X has hypergeometric distribution with parameter N=120 , M=15 and n=15 The probability mass…

Q: In a highly academic suburban school system, 45% of the girls and 40% of the boys cake advanced…

A: Given that Girls enrolled in the high schools of the district = 2200 Boys enrolled in the high…

Q: When two unbiased dice are thrown, find the expected value

A:

Q: A company when purchasing 5000 components from a manufacturing plant applies this sampling plan: By…

A: Obtain the probability that the company accepts the whole lot.   The probability that the company…

Q: Of all the weld failures in a certain assembly, 85% of them occur in the weld metal itself, and the…

A: Given: Sample size (n) = 20 The probability of weld failures in the weld metal itself (p) = 0.85 The…

Q: What is the expected frequency for a Male Shopper to regularly shop at a Grocery Chain?

A: HERE USE GIVEN CONTINGENCY TABLE   Grocery chain Discount store  Membership warehouse  Total…

Q: In a certain state, pickup trucks account for 25% of the state's registered vehicles. If 200…

A: Given problem Given that   In a certain state, pickup trucks account for 25% of the state's…

Q: In tossing 4 fair​ coins, what is the expected number of​ heads?

A: Solution-: We given 4 fair coins. We find the expected number of heads?

Q: In a family with 2 children, excluding multiple births and assuming that a boy is as likely as a…

A: Let B=Boy and G=Girl Possible number of outcomes for two children are {BB, BG, GB, GG} Let x= number…

Q: A manufacturing company performs a quality-control analysis on the ceramic tile it produces. Suppose…

A:

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: In tossing 5 fair coins, what is the expected number of heads? Let the random variable X represent…

A:

Q: A jar is filled with 68 different colored marbles, 8 of which are red, 38 of which are blue, and 22…

A: Given: Total number of marbles = 68 Number of red marbles = 8 Number of blue marbles = 38 Number of…

Q: A company selling substandard drugs to developing countries sold 2,000,000 capsules with 60,000 of…

A: Provided information is, a company selling substandard drugs to developing countries sold 2,000,000…

Q: In an 8 question multiple-choice test, each question has 5 choices and only one of those choices is…

A: Solution: Let X be the number of correct answers and n be the sample number of questions. From the…

Q: What is the process for solving the following question?   Suppose 57% of the students at UNCG are…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: what is the expected number of tails?

A:

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: (4) Consumer Reports rated airlines and found that 85% of the flights involved in the study arrived…

A: ( 4 ) Given that n =200 ,p=0.85

Q: State Farm Insurance studies show that in Colorado, 65% of the auto insurance claims submitted for…

A: According to the provided information: Probability (p) = 0.65 Sample size (n) = 8

Q: As reported by Television Bureau of Advertising, Inc. in Trends in Television, 84% of U.S.…

A: It is given that n =500 and p =0.84.

Q: Suppose 8 quarters, 5 dimes, 7 nickels, and 8 pennies are in a box. One coin is selected at random.…

A: The solution of above question is written below.

Q: Consider the experiment of selecting a playing card from a deck of 52 playing cards. Eachcard…

A: The experiment is to select a playing card from a deck of 52 playing cards. Each card corresponds to…

Q: In tossing 3 fair​ coins, what is the expected number of​ heads?

A: Probability of head p =12 number of coins n= 3 The expected number heads in tossing 3 fair coins is…

Q: If 11% of the population has a certain illness , what is the expected number of ill people in a…

A:

Q: Although studies continue to show smoking leads to significant health problems, 20% ofadults in the…

A: The 20% of the adults in the United States are smokers. The sample size is 250 adults. The formula…

Q: In a certain state, pickup trucks account for 28% of the state's registered vehicles. If 100…

A: From the given information, n = 100 and p is 0.28.

Q: Approximately 10% of all people are left-handed.  If you select a group of 27 people, what is the…

A: Given: Sample size (n) = 27 p (left-handed) = 10% = 0.10 Let "X" be the people who are left handed.

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: what is the expected number of participants who arrived from 8 to 10 am?

A: Here Given  Arrival Rate= 5 per hour  No of team member in each team is Independent and takes value…

Q: When Tim Hortons used physical cups for their Roll up the Rim contest (before switching over to…

A: Here p( win ) = 1/6 =p X = no. of trial required until first success.  Follows geometric…

Q: three children.  Assume the likelihood of a girl (G) and boy (B) is the same.  How many…

A: Given, Suppose a family has three children.  Assume the likelihood of a girl (G) and boy (B) is…

Q: If 54% of all Americans approve the recent job performance of the president, what is the expected…

A: Given: n=1036 p = 54% of all Americans approve the recent job performance of the president = 0.54…

Q: An unbiased fair coin was tossed 15 times. What is the probability of getting exactly 8 heads?

A: We have given the following statement coin tossed 15 times.  We have to find probability of getting…

Q: What is the probability of getting a sample in which more than 70% think that airplanes would be…

A: Let p be the true proportion of adults who think airplanes would be safer places if airlines…

Q: In designing an experiment involving a treatment applied to 4 test​ subjects, researchers plan to…

A: It is provided that 4 subjects are randomly selected out of 34 subjects which is available.Thus,The…

Q: A geologist has collected 21 specimens of basaltic rock and and 15 specimens of granite. The…

A: Given: number of specimens of basaltic rock = 21 number of specimens of granite = 15 total number of…

Q: In a survey of the weights of the backpacks of 52 students, 11 students' weighed between 0 and 12,…

A: Solution: The given data is

Q: In tossing 2 fair​ coins, what is the expected number of​ heads? Let the random variable X represent…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.…

Q: If a sample of 8 batteries is selected from a lot of 11, of which 4 are defective, what is the…

A: A sample of 8 batteries is selected from a lot of 11, of which 4 are defective. The probability of…

Q: A coin is biased such that a head is twice as likely to occur as a tail. Find the expected number of

A: When tossing a coin, the possible outcomes are Tail and Head. PH+PT=1 A coin is biased such that a…

Q: In Wyoming, there are about 300,000 registered voters, of whom 30,000 are Democrats. A survey…

A: We have given that Total number of registered voters = 300,000 Number of Democrats = 30,000

Q: A manufacturing company performs a​ quality-control analysis on the ceramic tile it produces.…

A:

Q: A manufacturing company performs a quality-control analysis on the ceramic tile it produces. Suppose…

A: Total tiles = 16 Defective tiles = 7 If 5 tiles are sampled at randomly then probability that…

Q: A retail variety store that advertises extensively by mail circulars expects a sale with 20%…

A: