Suppose you have six Virginia quarters and four Pennsylvania quarters in your wallet. You randomly choose three quarters. What is the probability that all the quarters will be Virgin

Q: in a certain town. If a resident who is 30-49 years old is chosen at random, what is the probability…

A: Here given information of education and age. Probability = no of Favorable outcomes / Total outcomes…

Q: 4. An article reports that 1 in 200 people carry the defective gene that causes inherited colon…

A: The probability of caring for a defective gene by a person is, The binomial expression for the…

Q: Beth gets a sum of 5 when she rolls two fair number cubes. What is the probability that one of the…

A: (2)Answer:- We know that the sample space for a roll two number cubes is,  {(1,1) ,(1,2) ,(1,3)…

Q: A survey was conducted that asked 1005 people how many books they had read in the past year. Results…

A: Mean =14.4 standard deviation =16.6 sample size =1005

Q: If a baseball player gets 12 hits for every 40 at bats, how many at bats would the player need to…

A: we have 12 hits for every 40 at bats

Q: In this problem you will get additional practice with the concepts of marginal probability, joint…

A: The dataset is given as-     Party identification     Ethnic group Democrat Independent…

Q: 1. Let joint PMF of X,Y is as follows X Y 1 2 What condition should a and ß satisfy? 1 1/6 1/3 2 1/9…

A:

Q: Construct a 90% confidence interval of the population proportion using the given information. x=160,…

A: The given values are: x=160,n=200.

Q: There are 15 mobile phones in a package box, 9 of which are iphones. If a person takes 5 phones from…

A: no.of iPhone =9 Total mobile phones=15

Q: Ages Number of students 15-18 10 19-22 10 23-26 9 27-30 8 31-34 8 35-38 5 Based on the frequency…

A: The age distribution and the number of students is given.

Q: Determine whether the variable is qualitative or quantitative. Explain your reasoning. Postal ZIP…

A: We know that, Quantitative data refers to any information that can be counted or measured and given…

Q: Suppose that E and F are two events and that P(E and F) = 0.5 and P(E)=0.8. What is P(FIE)? P(FIE) =…

A: P(E and F)=0.5 P(E)=0.8

Q: To compute the confidence interval use a     distribution. b. With 90% confidence the population…

A: x̄=38.3, ?=10.5, n=126

Q: What is the likelihood, given a random selection from a deck of standard playing cards, that a hand…

A:

Q: 3.An instructor has given a short quiz consisting of two parts. For a randomly selected student, let…

A: To find the PMF of Z, where Z = X + Y, we need to sum the probabilities of all possible combinations…

Q: 1. A mail-order computer business has six telephone lines. Let X denote the number of lines in use…

A: 1)Answer:- Let X denote the number of lines in use at a specified time. The PMF of X is given in the…

Q: An insurance company writes a policy to the effect that an amount of money A must be paid if some…

A: An insurance company writes a policy to the effect that an amount of money A must be paid if some…

Q: Lucy observed cars passing on a highway for 1 hour and recorded the data shown below. Vehicle…

A: The probability that a given vehicle is a red pickup truck is 0.06. P(red and pickup truck)=0.06…

Q: In a class of students, the following data table summarizes how many students play an instrument or…

A: Solution-: We have given the following table:   Plays an instrument Does not play an instrument…

Q: Suppose that 50% of all young adults prefer McDonald's to Burger King when asked to state a…

A: Here, p = 0.5 (for both McDonald's and Burger King preferences) and n = 8.

Q: A sales rep for a national clothing company makes 4 calls per day. Based on historical

A: Let X be the number of successful calls each day. X 0 1 2 3 4 P(X) 0.1 0.3 0.3 0.2 0.1…

Q: Determine the critical values for these tests of a population standard deviation. (a) A right-tailed…

A: The sample sizes, degrees of freedom and the level of significance are given

Q: subject: Quantitative Analysis For Business Please answer both. Use the image for question 10.…

A: The percentages of site visitors belonging to various age groups, and their preference to positive…

Q: Problem #4: We are throwing darts at a disk (i.e. a filled in circle) shaped board of radius 5. We…

A: The radius of the disk shaped board is 5. The radius of the disk shaped bullseye is 1. A dart is…

Q: A team of 8 softball players need to choose 3 players to refill the water cooler  Permutation…

A: Total number of softball players = 8 Number of players to refill the water cooler = 3

Q: We repeat a coin-like event 5 times with probability 0.3 of success. What is the probability of…

A: Number of trials=5  Probability of success=0.3 We have to find the probability of getting 1 success…

Q: 22. Heights of women. The heights of American women between the ages of 18 and 24 are approximately…

A: normal distributionμ = 64.1 inchesσ = 2.5 inchesP(height over 5 feet 9 inch) = ?

Q: For all A, B ∈ F with A ⊂ B holds P(A) ≤ P(B). Provide a proof, I know the following is given but I…

A: To prove that for any events A and B belonging to a probability space F, with A being a subset of B,…

Q: Given a population of 10,000 people and a known prevalence rate of 5% for a specific medical…

A: The prevalence rate is 5%.

Q: This table summarizes the number of game consoles sold in three areas as of the end of 2010. The…

A: import pandas as pdimport matplotlib.pyplot as plt # Create a DataFrame with the console sales…

Q: Suppose that the following information about random variable X is given: (0 b 3.5

A: Here, From Given function, P(x<0)=0P(x≤0)=12P(x≤1)=35P(x≤2)=45P(x≤3)=910P(x≤3.5)=1

Q: When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1029 Americans showed…

A: From the provided information, Sample size (n) = 1029 From which 51.1% disapproved of Kavanaugh that…

Q: The larger our standard error of estimates, a. the larger the R² b. the smaller the tratio c. the…

A: The large standard error of estimates  a. the larger the R2 b. the smaller the tratio c. the smaller…

Q: 15-2 1. DJ Find the probability that a point chosen at random from AK is on the given segment. A B C…

A: According to given information I will answer question 2. Find the probability that a point chosen at…

Q: educational The following table represents the highest attainment of all adult residents in a…

A: age 20-29 age 30-39 age 40-49 age >=50 total  high school only 1491 543 1147 1381 4562 some…

Q: You have just created a probability distribution - a table that shows all the possibilities for an…

A: You have just created a probability distribution - a table that shows all the possibilities for an…

Q: (i) What is the probability that this driver will be fined or get his license revoked? Middle steps…

A: The probability that a reckless driver will be fined, get his license revoked, or both are…

Q: Of the 250 students surveyerd, 100 prefered asynchronous distance learning and 150 prefered…

A: sample size (n) = 250p = proportion of student support asynchronous distance learningfavorable…

Q: For a nonnegative integer-valued random variable N, show that E[N] = ΣP(N ≥ i) i=1 and E[N(N + 1)] =…

A: For a discrete random variable N, the expectation is defined as EN=∑iiPN=i and EN2=∑ii2PN=i. Also,…

Q: lease round all answers to 2 decimal places. Given the table below, use your calculator to find the…

A: X 7.8 2.6 2.1 3.5 5.9 7.1 Y 24.6 14.7 4.2 7.8 19.1 17.2

Q: The following function is probability mass function. f(x) = 4x¹, x = 0, 1,2,3,4 Determine the mean,…

A: The given probability mass function is fx=4x+145,      x=0,1,2,3,4.

Q: A firm buys 500 identical components, whose failure times are independent and exponentially…

A: A firm buys 500 identical components, whose failure times are independent and exponentially…

Q: In a sample of 400 Internet subscribers taken in late 2000, 80% were connected by telephone, and the…

A: Let's explain transition matrices in Markov chains in a simple and intuitive way: Imagine you have a…

Q: Prob-1 Probability that cars have been assembled in a particular plant as follows: P(plant1) =20%, P…

A: The probabilities are given

Q: A population of 2,800 students from a certain region has normally distributed National Examination…

A: We have given that  Mean(µ) = 90 Standard deviations (σ) = 6X ~ N (µ, σ )= N(90, 6) n = 38 We find,…

Q: If X is uniform on [2, 6]. Find a. P(X > 3), b. P(4 ≤ x ≤ 5)

A: X~U(a,b) probability density function pdf of uniform distribution is.  f(x)=1/(b-a)  , a<x<b

Q: A bus stops at a bus stop every 45 minutes. Once a person gets to the bus stop, what is the…

A: Here given that bus at bus stop every 45 minutes .  Here we use exponential distribution ,  p(T ≤ t)…

Q: In how many ways can 2 people each have different birth months? OA. 66 ⠀ OB. 24 C. 144 D. 132

A: 2 people are there

Q: You have a bag of 12 candies, 2 each of purple, green and yellow, and 3 each of pink and red.…

A: There is total 12 candies in the bag.

Q: Before every flight, the pilot must verify that the total weight of the load is less than the…

A: Let X be the weights of men are normally distributed with mean 173.1 lb and a standard deviation of…