- In a study conducted among 100 randomly selected people over the age of 50; It was seen that 40 people had both a house and a car, 60 people had a house and 70 people had a car. What is the probability that a chosen person will own a house or a car, or both?    a) 0.75  B) 0.80  NS) 0.90  D) 0.95  TO) 0.85

Q: A fair, 12-sided die with the numbers 1, 2, 3, ..., 12 on the faces is rolled. What is the…

A:

Q: A box contains 3 white, 8 red and 9 blue balls. If 3 balls are selected at random then the…

A: We want to calculate the probability of one ball of each color P(one ball of each color)=P(A)

Q: 33% of all college students major in STEM (Science, Technology, Engineering, and Math). If 45…

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…

Q: Smoking leads to significant health problems, 20% of adults in Europe smoke. Consider a group of 250…

A: X has binomial distribution. X~B(n,p) Where n=250 and p=0.20 np and np(1-p) is greater than 5. then…

Q: Real estate ads suggest that 59 % of homes for sale have garages, 20 % have swimming pools, and 15 %…

A: Given that P(g) = 0.59 , P(pool ) = 0.20 ,P(both) = 0.15 ( a )P ( pool or garage ) =? ( b )P (…

Q: Your statistics class has 26 students in it (14 girls and 12 boys). Your teacher uses a calculator…

A: A) There are 26 students in a statistics class out of which 14 girls and 12 boys. The probability of…

Q: by (a) fewer than 4 hurricanes; (b) anywhere from 6 to 8 hurricanes.

A: Given : mean , μ= λ = 6

Q: What is the probability of rolling a dice three consecutive times and getting an even number every…

A: The probability of an event is defined as the ration of favorable outcomes to the total possible…

Q: What is the probability  of getting at least 1 head on 5 successive tosses of a coin? a. 3/4 b.…

A: A coin is tossed 5 successive times. The total number of possible outcomes is, N=2n Here, n is the…

Q: Consider a population of snakes in which 70% are female. If you randomly sample four snakes, what is…

A:

Q: (1 point) In a survey of 162 people, the following data were obtained relating gender to…

A: As per our guidelines we can solve first three sub part of question and rest can be…

Q: a. What is the probability of being dealt a hand that does not contain a heart?

A: Here Given 13 cards are selected without replacement. Now here Total number of cards=52=N Number  of…

Q: A group of people were asked if life exists elsewhere in the galaxy. 318 responded "yes", and 477…

A: Number of people who responded "yes" = 318Number of people who responded "no" = 477Total number of…

Q: 9% of all Americans live in poverty. If 48 Americans are randomly selected, find the probability…

A:

Q: 16. Based on records, 5% of the products produced in a factory are defective. If 8 products are…

A: Here the above situation follows a binomial distribution with parameters n=8 and p=0.05.

Q: Suppose that 60% of a population has a virus. You take a random sample of 13 members of this…

A: Let x be follows binomial distribution with parameters n = 13 and p = 0.60   The pdf of binomial…

Q: According to a government statistical organization, the unemployment rate for workers aged 24 to 27…

A: p=0.083n=120we have to find out the probabilities for the given data.

Q: Delta Airlines' flights from Chicago to Atlanta are on time 70% of the time. Suppose seven flights…

A: Given,Delta Airlines' flights from Chicago to Atlanta are on time 70% of the time. That is,…

Q: Q. A car wash laundry receives an average of 40 cars per day Find the follow: (a) The probability…

A:

Q: what is the probability of drawing a kind or a queen from a shuffled deck of cards?

A: 1 card is drawn, what is the probability that, 1 card is KING or 1 card is QUEEN. Total number of…

Q: You randomly select 500 students and observe that 85 of them smoke. What is your estimate of the…

A: Given , Total student = 500 Number of student who smoke = 85 We have to find the probability that a…

Q: 14 - In a five-question exam, the probability of a student answering the question correctly is 0.40,…

A: Given that : Probability of correct answer = 0.40 Probability of incorrect answer = 0.40 Probability…

Q: A survey of 200 people was conducted to see if they smoke. The results are shown in the table. Male…

A: The probability that the person is a male or a smoker is obtained below: The results are shown in…

Q: A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke),…

A: Given:   Smoke Not smoke Total 18 - 22 40 160 200 23-30 31 99 130 31-40 30 70 100 Total…

Q: What is the probability of selecting a car that is blue or red when the car park is filled with 11…

A: Number of red cars = 11 Number of white cards = 12 Number of blue cars = 15 Total number of cars =…

Q: A certain state has the highest high school graduation rate of all states at 85​%.   a. In a random…

A: Solution: We are given that a certain state has the highest high school graduation rate of all…

Q: - In a study conducted among 100 randomly selected people over the age of 50; It was seen that 40…

A:

Q: 15 400 people were questioned as to whether they read novels in paperback form or on an e-reader.…

A: The two by two contingency table (also called fourfold contingency table) represents two…

Q: According to government data, 73% of employed women have never been married. Rounding to 4 decimal…

A: Given,sample size(n)=15p=0.73Ler X= no.of women have never been marriedX~Binomial (n=15 ,…

Q: Mr. Blackwells's class is conducting an experiment to find the probability of pulling certain colors…

A: Given that 2 marbles= purple 4 marbles = yellow 3marbles=green 16 marbles=black

Q: 9. An experimental drug has been shown to be 75% effective in eliminating symptoms of allergies in…

A: It is given that n is 6, x is 3 and p is 0.75.

Q: Colgate claims that 90% of dentists recommend Colgate toothpaste. Suppose you randomly choose 10…

A:

Q: In a study conducted among 100 randomly selected people over the age of 50; It was seen that 40…

A: Obtain the probability that a chosen person will own a house or a car, or both. The probability that…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.