Suppose that 30% of all college freshmen gain weight. A sample of 20 selected randomly. What is the probability that exactly 6 freshmen gain weight?

Q: Consider the experiment of drawing a card at random from a shuffled deck of 52 cards. What is the…

A: Let B be an event of  drawing a black card, thenPB =no. of black cardstotal no. of cards=2652=0.5

Q: A poll is given, showing 20% are in favor of a new building project. If 10 people are chosen at…

A: Given data, p=20%=0.20 n=10 P(X=5)=?

Q: A poll is given, showing 20% are in favor of a new building project. If 2 people are chosen at…

A: Given data,p=20%=0.20n=2P(X=1)=?

Q: About 10% of the population of a large country is hopelessly romantic. If two people are randomly…

A: Independence of Events: Two events A and B with P(A), P(B) > 0, are said to be independent if,…

Q: In a given year, 2,264,724 males and 2,124,694 females were born in a certain country. If a child is…

A: Number of male born in that given year: NM=2264724 Number of female born in that given year:…

Q: In a large population, 52 % of the people have been vaccinated. If 5 people are randomly selected,…

A: Let p be the proportion of vaccinated people. Given that p = 0.52 Let X denotes the number of…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A:

Q: About 8% of the United State population catches the flu each season. Assuming everyone has equal…

A: Given that 8% of the United State population catches the flu each season. This means if there are…

Q: A poll is given, showing 65% are in favor of a new building project. If 5 people are chosen at…

A:

Q: About 8% of the U.S. population catches the flu each season. Assuming everyone has equal probability…

A: Given: About 8% of the U.S. population catches the flu each season.

Q: Fifty-three percent of all people in the US have at least some college education. If 20 people are…

A:

Q: Consider a probability experiment in which a coin is tossed twice. How many outcomes are there in…

A: we know that, Outcome :  The result of a trial in a random experiment is called an outcome.   Sample…

Q: If one student is randomly chosen from the group, what is the probability that the student chose…

A: Given problem Given that     Homework Housework Outside Employment Recreation Other Total…

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: Find the probability for the experiment of drawing a card at random from a standard deck of 52…

A:

Q: A poll is given, showing 40% are in favor of a new building project. If 9 people are chosen at…

A:

Q: A poll is given, showing 45% are in favor of a new building project. If 5 people are chosen at…

A: As per guideline expert have to answer first question only dear student please upload other question…

Q: In a recent study, 35% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A: It is given that 35% of the people surveyed indicate chocolate was their favourite flavour of ice…

Q: (b) What is the probability that men will constitute a majority in the team?

A:

Q: Assume that in a group of 12 individuals, seven prefer football and five prefer cricket. A random…

A: Given : n = individuals = 12 football = 7 cricket = 5 a) Exactly two prefer football : =C27×C15C312…

Q: At a car manufacturing plant, 10% of cars have some sort of defect when they come off the line. If…

A:

Q: A poll is given, showing 60% are in favor of a new building project. If 10 people are chosen at…

A:

Q: A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at…

A: Let "X" be the people who are in favour of the new building.

Q: A poll is given, showing 40% are in favor of a new building project. If 10 people are chosen at…

A: We have to find probability..

Q: A poll is given, showing 80% are in favor of a new building project. If 8 people are chosen at…

A: Givenp=0.80n=8x~Binomial(n=8,p=0.80)P(X=x)=(nx)×(p)x×(1-p)n-x   ; x=0,1,....,n

Q: In a city of 120,000 people there are 20,000 Norwegians. What is the probability that a randomly…

A: Total number of people, N=120,000 Number of Norwegians, n=20,000 The objective is to find the…

Q: About 10​% of the population of a large country is nervous around strangers. If two people are…

A: The probability that a randomly selected people is nervous around strangers is 0.10. The probability…

Q: In a large population, 53% of the people have been vaccinated. If 5 of the people are randomly…

A: It is given that n = 5 and p =0.53.

Q: A poll is given, showing 75% are in favor of a new building project. If 10 people are chosen at…

A:

Q: A poll is given, showing 25% are in favor of a new building project. If 9 people are chosen at…

A: Given data, p=25%=0.25 n=9 P(X=8)=?

Q: A poll is given, showing 55% are in favor of a new building project. If 10 people are chosen at…

A:

Q: If one person is randomly selected from the group, what is the probability that this person does not…

A: The formula for the probability is,

Q: A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at…

A: Given: Sample size (n) =8 Probability of success (p) = 0.35 Formula: Let "X" be the poll showing in…

Q: A poll is given, showing 25% are in favor of a new building project. If 10 people are chosen at…

A: Let "X" be the people who are in favor of the new building.

Q: Consider two people being randomly selected.  What is the probability that two people have a…

A: There are 12 months in a year Total month in a year = 12

Q: According to a survey, 31% of teenagers could recognize a picture of legendary film star John Wayne.…

A: We have to find out given probability that Rendomly selected  teenagers could recognize John…

Q: A poll is given, showing 35% are in favor of a new building project. If 9 people are chosen at…

A:

Q: About 8% of the US population catches the flu each season assuming everyone has equal probability of…

A:

Q: Find the probability for the experiment of selecting one card from a standard deck of 52 playing…

A: A standard deck contains 52 cards.In a standard deck, there are 3 face cards (a jack, a queen and a…

Q: In a small private​ school, 4 students are randomly selected from 14 available students. What is the…

A: Solution: Total number of available students n = 14 r =4

Q: In a given year 2,103,001 males and 2,325,160 females were born in a certain county. If a child is…

A: Number of males = 2103001 Number of females = 2325160 Total number of child = 2103001 + 2325160 =…

Q: In a certain community, on a particular weekday evening, the television is being watched in 85% of…

A:

Q: A poll is given, showing 20% are in favor of a new building project. If 10 people are chosen at…

A: Solution: Let X be the number of people favor the new building project and n be the sample number of…

Q: In Norway, approximately 22% of vehicles are electric vehicles. Which is closest to the probability…

A:

Q: A poll is given, showing 45% are in favor of a new building project. If 10 people are chosen at…

A: We have to find given probability.

Q: A recent poll indicated that about 83​% of U.S. households had access to a​ high-speed Internet…

A: The expected number of households have access to a​ high-speed Internet​ connection is obtained…

Q: If one student is randomly chosen from the group, what is the probability that the student is female…

A:

Q: A poll is given, showing 65% are in favor of a new building project. If 9 people are chosen at…

A: Let X be the number of people who are in favor of a new building project which follows binomial…

Q: If 12 coins are tossed, what is the probability that six of them will be heads (approximately)?

A: Number of times coin is tossed = 12 Probability of getting head in single toss =0.5 Probability of…

Q: A poll is given, showing 60% are in favor of a new building project. If 6 people are chosen at…

A: Given,n=6p=0.6X=no.of people favor the new building projectsX~Binomial(n=6 , p=0.6)P(X=x)=Cxn…

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.