mathematics, French, American history, chemistry, and computer scie questions: a. If she chooses a CD at random, what is the probability she chooses the English CD? b. What is the probability that she chooses a CD that is neither math nor chemistry? high a player rolls two

Q: In a recent poll, 44% of survey respondents said that, if they only had one child, they would prefer…

A: Given Probability of success on a trial, p = 44% = 0.44Sample size, n = 150 Using formula, In normal…

Q: Suppose we have a coin with a probability p of coming up heads and q = 1 − p of coming up tails on…

A: The following solution is provided below

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A: Total marbles=T=4+4+3+2=13Red marbles R=4, Green marbles G=4, White marbles W=3, Purple marbles…

Q: A study was conducted to compare the length of time between men and women to assemble a certain…

A: From the above data, the sample sizes and standard deviation are

Q: 9. X is a normal distributed variable with mean μ = 30 and standard deviation a = 4. Find Z: A. 3.5…

A: Solution-:Q.9 Given:  find z=?Q.10 The discrete random variable X whose probability distribution is…

Q: 11. The proportion of defective parts produced by ABC Company was equal to 0.25 when the owner…

A: The given claim is that the proportion of defective parts prodiced by ABC company was reducted and…

Q: Let X be a continuous random variable with a probability density function f. Let the x-value a be…

A:

Q: a. Find 90% confident interval for the proportion of defective parts produced by a company. Keep two…

A: It is given asSample size, n = 50Favourable cases, x = 6

Q: Demonstrates the Law of Large Numbers by taking a uniform random variable from 0 to 10 and showing…

A: By using a uniform random variable from 0 to 10, We need to demonstrate the Law of Large Numbers by…

Q: round, 2 coins yielded a head and y2 coins yielded a tail. Once again, z2+ 3/2 = n. She does this…

A: Only answer of question 6 is requestedIf probability of getting head ,that is P(H)=p and the…

Q: Two fair dice (one red, one green) are rolled and what is observed is the faces that face up. a.…

A: It is given two fair dice are rolled (one red, one green).

Q: Suppose that a researcher is studying a food delivery app. They claim that the app’s actual delivery…

A: The following solution is given below

Q: A rare form of malignant tumor occurs in 11 children in a​ million, so its probability is 0.000011.…

A: P = 0.000011 So, q = 1-p = 1 - 0.000011 = 0.999989N = 12441 Mean = N*P Standard deviation = √(NPq)

Q: What probability falls within one standard deviation of the mean?

A: It is given that the statement about to the probability falls within one standard deviation of the…

Q: D=Y-X -15 -40 1 5 NOTE: EX²-30775,, [Y²-34560, 10 [XY=31336 Z .Give 95% Cl for the mean grades of…

A: It is given asFor first exam grade XSample mean = 54.3Sample standard deviation = 11.97Confidence…

Q: A pharmaceutical manufacturer makes more than 500 000 pills of a certain drug each day. The company…

A: Sample size n = 400Out of 400 pills, 52 were found to be substandard.X = 52Confidence level =…

Q: An article gave a scatter plot along with the least squares line of x = rainfall volume (m³) and y =…

A: xy5412101413161523153025402750455538674672537977968211299127100

Q: 26 14 30 45 20 21 27 32 40 Age of residents in a neighbourhood 50 9 37 Create a histogram to display…

A: Solution-:Age of residents in a neighbourhoodCreate a histogram to display the data.

Q: An engineer of a company which manufactures small motors of Type B suspects that the mean lifetime…

A: Mean()=895standard deviation(s)=25sample size(n)=50significance level()=0.01

Q: A study was carried out to evaluate the safety of motorcycle helmets. 40 randomly selected helmets…

A: Solution:-To determine the confidence with which the study can claim that the proportion of all…

Q: Suppose X and Y are random variables with joint density function. 0.1e-(0.5x+0.2y) {0.1 if x ≥0, y…

A:

Q: X is a discrete random variable with probability mass function 4 ƒ(x) = cx² for x = Find the value…

A: We have to determine value of c.

Q: A store has scooters in various sizes and colors. Their present stock is giver in the following…

A: The store has scooters in various sizes and colors. Their present stock is given in the following…

Q: Recently, you were assigned to manage a project for your company. You have constructed a network…

A: Let  denote the optimistic, most likely, and pessimistic, respectively. Let  denote the expected…

Q: Let X be a random variable with density function f(x) = { k(1-x²), ito ≤x≤1; otherwise. 12 Find k,…

A: Y=3X-1 Find mean and variance of Y variable.

Q: answer all for upvote

A: Poisson arrival, exponentially distributed service with one server. Let's calculate each part step…

Q: Consider two individuals (1 and 2) and assume their preferences over gambles over [0, infinity) can…

A: The objective is to determine whether the two individuals (1 and 2) are risk-averse, risk-loving, or…

Q: Groups of men from three different areas of the country are to be tested for mean weight. The…

A: Steps to find the mean square factorFirst we need calculate overall mean(mean of all…

Q: Where does 3 come from?  Its 60 minutes divided by 6?

A: From the given data, This is M/M/1 queue system with following parameters,Arrival rate, lambda = 5…

Q: 1. Determine the probability of obtaining a red or a two-color marble, if taken at random from a…

A: As per our guideline we are supposed to answer only one question.1) Given,Red marble: 9Black marble:…

Q: 2. Descriptive statistics for qualitative data Guests staying at Marada Inn were asked to rate the…

A: RatingsFrequency Below Average3Average5Above Average9Poor2Excellent1Total= 20From above frequency…

Q: Question 5 Giving a test to a group of students, the grades and gender are summarized below Male…

A: Total=53, Got A=25, Got B=10, Got C=18, Male=32, Female=21Note: According to bartelby question…

Q: The monthly starting salaries of students who receive an MBA degree have a population standard…

A: The poulation standard deviation: The confidence level: The Margin of Error:

Q: Please select the discrete random variables: (multiple answers are discrete) Group of answer…

A: Discrete random variables:A discrete random variable is a type of random variable that can take on a…

Q: J. If x is a binomial random variable, compute P(x) for each of the following cases: (a) P(x ≤ 4), n…

A: We Given that x is a binomial random variable, we have to compute P(x) for each of the following…

Q: In order to estimate the difference between the average miles per gallon of two different models of…

A: It is required to obtain the 95% confidence interval estimate of the difference between the average…

Q: Select the correct distribution for the description given. A group of student-athletes are planning…

A:

Q: 1. A coin is thrown 3 times. What is the probability that at least one head is obtained? A. 5+6 B.…

A: A coin is thrown 3 times .so the possible out comes are 8.HHHHHTHTHTHHHTTTHTTTHTTT

Q: (~) = {¹².1² de Az Recall that X is a random variable with an exponential density function with…

A: Provided that  and . Their denstity functions are: Using the convolution method we can determine the…

Q: The average price of a dozen eggs in 2018 was $1.60. A sample of 250 stores across the nation in…

A: The given average price of a dozen eggs in 2018 was $1.60.The sample size is 250, the sample mean is…

Q: 21] The probability distribution of the continuous random variable X is described below. Find c,…

A: f(x)=ce(5−2x); 0.5< x< 2.5

Q: A regional automobile dealership sent out fliers to prospective customers indicating that they had…

A: Given a regional automobile dealership sent out fliers to prospective customers indicating that they…

Q: 10. A supermarket conducted a survey of 1000 consumers. Their population was "adults who shop for…

A: a. Sampling bias: The supermarket might have disproportionately sampled people who tend to eat more…

Q: An engineer of a company which manufactures small motors of Type A suspects that the mean lifetime…

A: The claim is that the mean lifetime of a new motor of type A is less than advertised lifetime of 500…

Q: Let X1, . . . , X5 be independent standard normal Random Variables. Compute the probability…

A: The following solution is provided below:

Q: Engineering data analysis show solution * There are 8 socks in your drawer. 5 are black and 3 are…

A: Total number of Socks = 8Number of black socks = 5Number of white socks = 3If we draw 2 socks in…

Q: An article contained the following observations on degree of polymerization for paper specimens for…

A: 416421422423426428430434437439446447449453456462464

Q: A random sample of twelve orders at a local fast food restaurant provided the following information.…

A: The data shows a sample of twelve orders at a local fast food restaurant provider.

Q: In a city, a study has disclosed that the relationships between the occurrences of a dry day and a…

A: Given:The probability of a dry day following a dry day is 0.95.The probability of a wet day…

Q: Which of the following statements is NOT true about a normal distribution?   A normal distribution…

A: From the above given data the following solution is provided below :