7. Suppose that about 85% of graduating students attend their graduation. A group of 26 graduating students is randomly chosen. Find the probability that 19 or 20 attend. (Round your answer to four decimal places.)

Q: Twenty-one percent of people say they've seen a ghost or felt its presence. If 13 people are asked,…

A: Answer:- Given, Twenty-one percent of people say they've seen a ghost or felt its presence. That is,…

Q: A group of people were asked if life exists elsewhere in the galaxy. 140 responded "yes", and 324…

A: It is given that, 140 responded "yes" and 324 responded "no" about life exists elsewhere in the…

Q: The probability that a student passes a Math course is 0.7. If the student has 8 math courses in her…

A: Here, n = 8 and p = 0.7

Q: At a certain University, the chance of a student receiving financial aid is 73%. 15 students are…

A:

Q: The probability that a spark plug is defective is 35%. Suppose that a person buys 7 spark plugs.…

A:

Q: a. 5 or 6 of them pay cash b. at most 1 pays cash

A: Given : Percentage of customers who pay cash for their purchases is 30% , p = 0.3 Sample size, n…

Q: 4. You roll a single number cube 20 times. What is the probability that it lands on 3 at least 5…

A: We are given:number of trials: n = 20probability of success: 1/6number of successes: at least 5 So,…

Q: thirty four percent of us adults have very little confidence in newspapers. You randomly select 8 US…

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

Q: Alison Bender works for an accounting firm. To make sure her work does not contain errors, her…

A:

Q: Naval intelligence reports that 8 enemy vessels in a fleet of 22 are carrying nuclear weapons. If 9…

A: It is given that there are a total of 22 vessels and 8 out of 22 vessels are carrying nuclear…

Q: The probability that an individual is left-handed is 0.190. In a class of 17 students, what is the…

A: It is given that,  The probability that an individual is left-handed is 0.190  i.e. p=0.190 We have…

Q: Suppose that the probability that the life of a battery will exceed 36 months is 0.42 You take a…

A: It is given that, n=102 p=0.42

Q: You decide to record the hair colors of people leaving a lecture at your school. What is the…

A: Given that, Blonde Red Brown Black Gray 20 46 19 49 50 Total persons = 20+46+19+49+50…

Q: T5.8 In a class, there are 18 girls and 14 boys. If the teacher selects two students at random to…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: A baseball player has a batting average of 0.265. What is the probability that he has exactly 2 hits…

A: Given data, p(hit) =p=0.265 sample size (n)=7 x = no. of hits in 7 bats P(x=2) =?

Q: Suppose you receive a bouquet of flowers that contains 7 red roses, 12 white daisies, 2 yellow…

A: The first step in solving this problem is to determine the total number of flowers in the bouquet.…

Q: The monthly worldwide average number of airplane crashes of commercial airlines is 3.5. Find the…

A: From the provided information,The monthly worldwide average number of airplane crashes of commercial…

Q: Suppose that about 57% of the people who are murdered actually knew the person who committed the…

A: 57% of the people who are murdered actually knew the person who committed the murder  :  q = 57% =…

Q: In a large population, 57% of the people have been vaccinated. If 3 people are randomly selected,…

A: Obtain the probability that that at least one of them has been vaccinated. The probability that that…

Q: Air-USA has a policy of booking as many as 26 persons on an airplane that can seat only 22. (Past…

A: Given information 26 persons on airplane that can seat only 22 Let X be the number of persons arrive…

Q: . In a five children family, find the probability that there will be 3 or more boys. a. 0.3125 b.…

A:

Q: In a large population, 68% of the people have been vaccinated. If 5 people are randomly selected,…

A: Givenp=0.68n=5Let x be no.of people vaccinatedx~Binomial(n=5,p=0.68)P(X=x)=(nx)×px×(1-p)n-x   ;…

Q: Fifty-three percent of all U.S. citizens have some college education. Choose 10 people at random,…

A: Answer: Given that                    p= 0.53      ,   n=10                      now will use…

Q: A baseball player has a batting average of 0.185. What is the probability that he has exactly 2 hits…

A: Let us denote: X= the number of hitsn=number of trials=7p=the probability of success= 0.185X follows…

Q: A carnival game consists of choosing a rubber duck from a kiddie pool. If the duck has a red dot on…

A: There are 10 ducks in the pool, and 2 of them have red dots.

Q: Suppose that 20% of the cars on the road of Tashkent city are equipped with an anti-radar device.…

A: Given 20% of the cars are equipped with an anti-radar device. Sample size, n=4

Q: Seventeen percent of married couples say they are planning a trip to Europe. You randomly select 15…

A: Suppose a random variable x, defines the number of married couples, who are planning a trip to…

Q: In poker hand consisting of 5 cards, find the probability of holding 2 aces and 3 jack

A: Given Number of aces=4 Number of jacks=4 Total number of cards=52

Q: If the probability that a randomly chosen college student takes statistics is 0.34, then what is the…

A: The probability that a randomly chosen college student takes statistics is 0.34. The probability…

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.