In a highly academic suburban school system, 45% of the girls and 40% of the boys cake advanced placement classes. There are 2200 girls and 2100 boys enrolled in the high schools of the district. What is the expected number of students who take advanced placement courses in a random sample of 150 students?

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: A psychology class consists of 36 males and 48 females. If the professor selects names from the…

A: Given, A psychology class consist of 36 males and 48 females. and professor select names from the…

Q: In a large population, 50 % of the people have been vaccinated. If 3 people are randomly selected,…

A: Givenp=50%=0.50n=3x=noof people get vaccinatedx~Binomial(n=2,p=0.50)P(X=x)=Cxn px (1-p)n-x    ;…

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…

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A: According to the provided information, 25% of people commute to work by bicycle.

Q: Catherine Chao, director of marketing research, needs a sample of Kansas city households to…

A:

Q: A psychology class consists of 28 males and 52 females.  If the professor selects names from the…

A:

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…

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A:

Q: 5 of 8 students are from middle Georgia state college. What is the probability that both of the…

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Q: In the experiment of tossing an unbiased coin (or synonymously balanced or fair coin), the sample…

A:

Q: c. Suppose that you take a random sample of 5,000 people from the U.S. population. Make a table that…

A: Given problem is :

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A: Given Information: 0.19% of the automobiles sold are silver. Two cars are selected randomly.

Q: A psychology class consists of 28 males and 52 females. If the professor selects names from the…

A: a)Let  denote the total number of females in the class.And  denote the total number of students in…

Q: Suppose a recent study determined that 29% of Americans favorite ice cream flavor is If a sample of…

A:

Q: Thirty percent of the students in Unix College is in favour of a ban on drinking in the dormitories.…

A: Let us assume that X= number of students who favor ban  X follows a binomial distribution with…

Q: In a recent study, 65% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A: Given,n=11p=0.65Let X =no.of people name their favorite flavor of ice cream.X~Binomial(n=11 ,…

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: When one is randomly sampling four items from a population, what is the probability that all four…

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A: It is given that n=100 and p=0.54.

Q: In a large population, 55% of the people have been vaccinated. If 3 people are randomly selected,…

A: Let "X" be the people that have been vaccinated.

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: On average, hotel guests who take elevators weigh about 160 pounds with an SD of about 40 pounds. An…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: In the United States, 75 percent of adults wear glasses or contact lenses. A random sample of 10…

A: A random variable X, is said to follow binomial distribution if the probability mass function of X…

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: A psychology class consists pf 28 males and 52 females. If the professor selects names from the…

A: Number of males in the class = 28 Number of females in the class = 52 Total number of students =…

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: For a departmental inquiry committee, an employer randomly selects a sample of three employees from…

A: From the provided information, Total employees = 10 Total men = 6 Total women = 4

Q: Find the expected value (for the participants) for lottery with 4000 sold tickets by price $50.00…

A: Given data is : 4000 ticket Price per ticket is $50.00 One winning ticket is $12000

Q: In a recent survey, it was found that the median income of families in country A was $58,000. What…

A: Let X denote the income of families in country A. Given that median of X is 58000

Q: In a factory that produces blocks of ready- made concrete, if the percentage of production of…

A: Given data,Sample size n=5Percentage of production of defective blocks is p=0.6Let X be event that…

Q: It costs $2 to buy a raffle ticket. If there are 500 tickets sold, and there is one first prize of…

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: In a sample of ten men, it is found that six are physically fit. If four men are randomly selected…

A: General formula of probability is,  Probability = Number of favorable outcomes Total outcomes

Q: A church is holding a raffle and sells 500 tickets for $2 each. If the church awards one $100 first…

A: There is one $100 prize  So the probability of winning $100 is = 1/500    there are two $50 prize So…

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: Fifty-three percent of U.S. households have a personal computer. In a Random sample of 250…

A: It is an important part of statistics. It is widely used.

Q: In a 2 colour spinner, the probability of spinning red is 4 times the probability of spinning green.…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: A small tool‑and‑die shop manufactures kneuter valves. A shipment of 15 valves to a Swedish…

A:

Q: At a​ raffle, 10,000 tickets are sold at​ $5 each for three prizes valued at​ $4,800, $1,200, and​…

A:

Q: If the publishing company has a total of 280 sales representatives, what is the expected bonus that…

A: The given data is, X P(X) X*P(X) 24000 0.11 2640 13000 0.35 4550 6000 0.12 720 Total 1…

Q: At a major credit card bank, the percentages of people who historically apply for the Silver, Gold,…

A: The null and alternative hypothesis is,   The expected number of customers applying…

Q: A church is holding a raffle and sells 500 tickets for $2 each. If the church awards one $100 first…

A: Note:Hey there! Thank you for posting the question. Your question says “what is the expected value…

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: In a management trainee program, 80 percent of the trainees are female, 20 percent male. Ninety…

A: It is important in statistics . It is widely used nowadays .

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

A: Consider the formula for the probability. Assume n to be the total number of the participant…

Q: In a class of 50 students, 27 are Democrats, 9 are business majors, and 7 of the business majors are…

A: