Discuss probability or non-probability sampling, sampling method and sample size. Sampling method Sample size Give example

Q: a. 10! = b. C. || 8! 3!5! d. 20 P3 || e. 20 C3 f. 1! = g. 0! = = = h. 6 C2 ×8 C3 =

A: There are more than 3 parts in one question so we are solving the first three questions as per…

Q: An urn holds 4 red, 3 blue, and 2 green marbles. Three marbles are selected, altogether, without…

A: Given:Red marbles: 4Blue marbles: 3Green marbles: 2Total marbles: 4+3+2=9Number of marbles selected:…

Q: en the following probabilities. = 0.07 5.7 = 0.45 operties of probability trees to complete the…

A:

Q: In a classroom there are 28 tablets which include 5 that are defective. If seven tablets are chosen…

A: In a classroom there are 28 tablets which includes 5 that are defectiveTotal number of tables…

Q: Let X₁, X₂,... be independent random variables, each taking a value of either 1 (with probability p)…

A: Given:Let  be independent random variables, each taking a value of either 1 (with probability p) or…

Q: Machinists who work at a tool-and-die plant must check out tools from a tool center. An average of…

A: arrival rate =lambda= = 10 machinist per hourThe service rate () = 5 min to hander per request…

Q: et A, B, and C be independent events with P(A) = 0.3, P(B) = 0.6, and P(C) = 0.75. Then, P(A'∩B∩C')…

A: It is given that A, B, and C are independent events with P(A) = 0.3, P(B) = 0.6, and P(C) = 0.75.It…

Q: random variable X is given in the following table. Find the standard deviation of the random…

A: PMF of Xx-2-1012P(X =x)0.160.170.300.150.22

Q: A group of transfer bound students wondered if they will spend the same mean amount on texts and…

A: Difference in means = Mean(u) - Mean(c) = 1015 - 949 = $66Population standard deviation of…

Q: Determine whether the quantitative variable is discrete or continuous. Number of days of rainfall in…

A: It is needed to define whether the given variable is discrete or continuous.

Q: this helps... but the question is asking what is the expected times we would flip a head. My…

A: To solve this problem, we can consider the cases where we flip a head in the first, second, third,…

Q: Suppose that we have a deck of 30 cards. Both sides of the first 10 cards are colored red, both…

A: Given: Let R be the event that the top side of the top card is red.Let B be the event that the…

Q: Consider the following properties of a random experiment: 1. There are a fixed number of trials.…

A: We are asked to match the properties to the respective probability distributions.Properties:1. There…

Q: Let (X,Y) have joint pdf f(x, y) = ½ on D = {(x, y) : x² + y² ≤ 1} and f(x, y) = 0 otherwise.…

A: Probability Density Function (PDF): Understand what a joint probability density function is. In this…

Q: An employee at Coconino Community College (CCC) is evaluated based on goal setting and…

A: The table containing categories, ratings, and weights for a particular employee is given…

Q: Suppose one randomly chooses a values X on the interval (0, 2), and then random choosing a second…

A:

Q: a) number (N) is safety incidents per month which correlates with following table: n 0-2 3 4 5 ≥6…

A: Since you have asked multiple question, we will answer the first question for you. If you want any…

Q: Suppose that a random variable X has the following probability density function. SC(36-x²) 0≤ x ≤ 6…

A: From the provided information,

Q: 2. A coin is tossed eight times and the sequence of heads and tails is recorded. Determine the…

A:

Q: Consider a random variable X with the following pdf: fx (x) 2/9 1/9- 0 + 3 6 8 a) What is P(X ≤ 5)?…

A: PDf of random variable X is:

Q: On average, 2 traffic accidents per month occur at a certain intersection. Complete parts (a)…

A: On average, 2 traffic accidents per month occur at a certain intersection.X~Poisson(λ=2)Note:…

Q: For mated pairs of gallinules (type of water bird), let X equal the weight in grams of the male and…

A: It is given that X denotes the weight of the male and Y denotes the weight of the female.X and Y…

Q: q1 Consider one - persistent CSMA. There are two contending stations having a packet ready, and both…

A: Consider one - persistent CSMA. There are two contending stations having a packet ready, and both…

Q: We choose 2 balls at random from an urn containing 8 white, 4 black and 2 orange. Suppose we receive…

A: Given:Total balls = 8 white + 4 black + 2 orange = 14 balls.Gains for black ball = $2.Loss for white…

Q: pay an amount of money M if some event A occurs within a year. If the insurance company estimates…

A:

Q: . Suppose X ~N(3.7, 1.28). Let Y = -0.5X + 14. Then, P(X <= 5.0) =?, E(Y ) =?, and V(Y

A:

Q: f(x) = { e^(-x) ; x > 0  0; elsewhere ] (i) Find the moment generating function of X. (ii) Find…

A: It is required to find the moment generating function of the random variable X, and also of the…

Q: Suppose that the waiting time X (in seconds) for the pedestrian signal at a particular street…

A: The random variable   represents the waiting time for the pedestrian signal. The PDF of random…

Q: probability that all six numbers appear?

A: Here eight distinct dice are rolled.Finite number of dice are rolled.Each die's outcome is…

Q: A​ single, six-sided die is rolled. Find the probability of rolling an odd number or a number less…

A: A single six sided die is rolled.Sample space S = {1, 2, 3, 4, 5, 6}Odd number or less than 4 = {1,…

Q: A company has both male and female employees. The company has shirts and jackets with the company…

A: From the information, given that

Q: What is the probability that a randomly chosen flashlight lasts more than 100 hours? R. 0.41 b)…

A: One boat contains 3 different types of disposable flashlights.The probability that a type 1…

Q: Help please: Alice throws darts at a circular target of radius r and is equally likely to hit any…

A: Here given that Alice throws darts at a circular target of radius r and is equally likely to hit any…

Q: After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired…

A: It is required to find the probability of getting four or fewer women when 17 people are hired,…

Q: What is the expectation of X?

A: Here without replacement model so use hypergeometric distribution.

Q: and second components meet specifications are 0.96 and 0.89, respectively. Let X be the number of…

A: The random variable X defines the number of components in the assembly that meet specification.

Q: According to a university's report, only 35% of all surgical operations at that time required an…

A: Given,The percentage of surgical operations requiring an overnight stay at a hospital is = 35%.So,…

Q: Q 4.1. Suppose X and Y are independent random variables, which are jointly continuous. 1. Show…

A: X and Y are independent random variables, which are jointly continuous.

Q: The trifecta at most racetracks consists of selecting the​ first-, second-, and​ third-place…

A: There are total 9 entries.The trifecta consists of selecting the​ first, second, and​ third-place…

Q: A theater group holds a fund-raiser. It sells 100 raffle tickets for $7 apiece. Suppose you purchase…

A: A theater group holds a fund-raiser. It sells 100 raffle tickets for $7 apiece.Four tickets are…

Q: A high school baseball player has a 0.208 batting average. In one game, he gets 9 at bats. What is…

A:

Q: Choosing officers: A committee consists of twelve women and eleven men. Five committee members will…

A: Committee consists  : 12 women and 11 men Total = 12 + 11 = 23 membersFive committee members will be…

Q: Find the expected value of the random variable Y by the probability distribution and by the…

A: Given that an exploratory oil well drilled in a particular region should strike oil with probability…

Q: If P(A) = 0.5, P(B) = 0.7 and P(AUB) = 0.6, what is P(An B)?

A: P(A)=0.5P(B)=0.7P(AB)=0.6

Q: his problem set will refer to a standard deck of cards. Each card in such a deck has a rank and a…

A: Let X denote the number of aces in your right hand. We want to find E(X). There are total 4 aces in…

Q: a) What is the expected value of a puzer b) One customer has two chances to receive a prize. If the…

A: A real estate developer is awarding one of four prizes to customers who view new properties. The…

Q: Based on the data that has been gathered what is the probability of disasters in July & Augustus…

A: Given the transition probability matrix as

Q: An elevator has a placard stating that the maximum capacity is 4100 lb-27 passengers. So, 27 adult…

A: The provided information is as follows:The mean weight is  lb.The standard deviation is  lb.We have…

Q: The pregnancy durations (in days) for a population of new mothers can be approximated by a normal…

A: We have given thatMean() = 262standard deviation() = 6 X ~ N (µ,  )= N( 262, 6)

Q: Coronary bypass surgery: A healthcare agency reported that 87% of people who had coronary bypass…

A: The sample of coronary bypass patients, The percentage of people who had coronary bypass surgery is…

Forecasting

Forecasting is a methodology that uses historical data as inputs to make well-informed predictions about the course of future trends. Forecasting is the method of making forecasts based on historical and current data, most commonly by trend analysis. In the business world, forecasting is a basic statistical task. Forecasting is used by businesses to decide how to allocate their budgets or prepare for expected expenditures in the future. Forecasts help managers formulate and execute production plans by providing forecasts. The primary goal of forecasting is to make accurate predictions.