At a particular college there are a total of 75 teachers. The table below shows the number of teachers in each age group. What is the probability that Age group Number in that age group 30 – 39 10 40 – 49 20 50 – 59 30 60 – 69 15 what is the probability that not all four people selected are in their 60s? Give answer to 3 decimal places.

Q: suppose that 64% of people own dogs. If you pick two people at random, what is the probability that…

A: Solution: Given information: Let A be the event that people having own dog P(A)= 0.64

Q: quiz has 11 multiple choice questions with each having 3 choices. Suppose a student decides to…

A:

Q: 13% of US residents are in their 30s. consider a group of 9 US residents selected at random. find…

A: It is given that the 13% of US residents are in their 30s i.e. the prob. that US residents are in…

Q: According to the National Highway Traffic Safety Administration, 83% of Americans used seat belts…

A: In this question it has given that,Probability (that Americans use seat belt belts regularly) =…

Q: You are pulling from a bag containing 9 blue marbles, 8 black marbles, 8 green marbles, and 3 yellow…

A:

Q: In a bag of marbles, there are 12 green, 12 blue, and one red. Find the probability for each…

A: As per given by the question, there are 12 green, 12 blue, and one red marbles in a bag. Now, 1.…

Q: At a particular college there are a total of 75 teachers. The table below shows the number of…

A: Given data, Age group Number in that age group 30 – 39 10 40 – 49 20 50 – 59…

Q: A coin is tossed 100 times. Find the probability that there are  between 40 to 60 tails (inclusive).…

A: Given that, Let X represents the number of tails that follows binomial distribution with Number of…

Q: A box contains 10 balls numbered from 1 to 10. You draw an odd numbered ball and then you put it…

A: Step 1:Probability of an event =…

Q: A quiz has 12 multiple choice questions with each having 3 choices. Suppose a student decides to…

A:

Q: 97 out of 100 scientists believe in the phenomenon of climate change. What is the probability that…

A:

Q: Suppose that 68% of people own dogs. If you pick two people at random, what is the probability that…

A: According to the provided information, 68% of people own dogs.

Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: Suppose that kearny Hight school ,37%are juniors,54% are female, and 28%are female and juniors .Find…

A:

Q: Refer to the table which summarizes the results of testing for a certain disease. A test subject is…

A: From given :   Positive test Negative test Total Has disease 144 17 161 Does not have disease…

Q: What is the probability if you randomly select a handful of 4 candy pieces you will pick one of each…

A: Solution: From the given information, there are 5 brown candy pieces, 7 blue candy pieces, 3 red…

Q: There are 15 marbles in a jar: 3 red, 7 blue and 5 green. One marble is drawn at random, Find the…

A: Classical definition of probability tells us that  the probability of an event =number of favourable…

Q: The drop out probability for students in computer science programs is 0.35. If 210 students enrolled…

A: Let X be the drop out students in computer science program. X has a binomial distribution with…

Q: survey found that 75% of women in a given city enjoy shopping online. Suppose you randomly selected…

A:

Q: In a class of students, the following data table summarizes how many students have a brother or a…

A: Solution

Q: Suppose that 55% of people own dogs. If you pick two people at random, what is the probability that…

A: Let p be the probability that a person owns dog. Given that p = 0.55 Let X denote the number of…

Q: 34% of all college students major in STEM (Science, Technology, Engineering, and Math). If 46…

A: Answer Given P =34%sample size [n] =46x =14

Q: A basketball player makes 160 out of 180 free throws. We would estimate the pro

A: Given that the basket ball player makes out of 180, 160 are free throws. That is, x=160 and n=180

Q: The CDC found that 20 % of high school student vape . If 12 high school students are randomly…

A: Given information n=sample size=12, p=probability of high school student vape

Q: In an average year in Las Vegas, there are 5 fires. a. What is the probability that there'll 8 fires…

A: Given problem Given that   a)

Q: Suppose that 57% of people own dogs. If you pick two people at random, what is the probability that…

A: Provided data is, 57% of people own dogs. Two people picked up randomly. The required probability…

Q: Suppose that 62% of people own dogs. If you pick two people at random, what is the probability that…

A: Number of trials n=2 Success of probability p=0.62 X~bin(n,p) nCx=n!/x!(n-x)!

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.