A shipment contains 8 igneous, 6 sedimentary, and 6 metamorphic rocks. ... If 5 rocks are selected at​ random, find the probability that exactly 3 are sedimentary.   ... find the probability that exactly 3 of the rocks aresedimentary is _____

Q: Is the probability for my standardized range really the same as for my original distribution? How…

A: introduction the above question is about probability  We have to explain is the probability for…

Q: Consider the pmf: f(x) = P(X = x) x, if x = {1, 2, 3} € 0, otherwise. Show that P(X = x) is indeed a…

A: Answer: - Given, the probability mass function                  f(x) = P(X = x) = 16xif x ∈{1, 2,…

Q: (4x³y-2)² (2x²y-5)⁰ (6xy-³)³

A:

Q: Suppose that 2% of transactions in a region are fraudulent. Transactions are assumed to be…

A: In question, Given that 2% of transactions in a region are fraudulent. Transactions are assumed to…

Q: 22. A bowl contains twenty cherries, exactly fifteen of which have had their stones removed. A…

A:

Q: Fuel economy estimates for automobiles built in a certain year predicted a mean of 28.8 mpg and a…

A: Given Mean=28.8 Standard deviation=5.2

Q: Assume that the average weight of an NFL player is 245.7 lbs with a standard deviation of 34.5 lbs.…

A: Given that  Mean = 245.7 , Standard deviation = 34.5 Sample size = 32

Q: Let Ar, r ≥ 1, be events such that P(Ar) = 1 for all r. Show that P(1 Ar) = 1.

A:

Q: A survey of nonprofit organizations showed that online fundraising increased in the past year. Based…

A: a. Suppose μ is the population mean one-time gift donation.

Q: A traditional fair die is thrown twice. What is the probability that: a) a six turns up exactly…

A: Here total number of out comes are 62=36 Sample space…

Q: 39,40,41

A: Given Information: Mean μ=256 Standard deviation σ=12.5

Q: 1. Problem on equity forward: Calculate the no-arbitrage forward price for a 60-day forward on a…

A:

Q: Hello, how do I go about calculating prior probability?

A: Prior probability :  It is an initial probability which obtained before the addition of new data.…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day,…

A: We have given that a= -1.215 b= 23.457 Since we know that regression equation is given by ŷ = ax + b…

Q: In a survey, 31 people were asked how much they spent on their child's last birthday gift. The…

A: given data n = 31x¯ = 41s = 395% ci for μ = ?

Q: A normal distributed population has parameters μ = 145.7 and o= 5.5. If a random sample of size n =…

A: Note; According to Bartleby guidelines expert solve only one question and rest can be reposted.…

Q: A coin has been weighted so that landing on "heads" is 4 times greater than landing on "tails".  You…

A: A coin has been weighted so that landing on "heads" is 4 times greater than landing on "tails". i.e.…

Q: 2. Each person in a group of n people chooses another at random. Find the probability: (a) that…

A: GivenTotal number of people =n Each person chooses another person at random. a) The number of people…

Q: K Twenty-four subjects volunteer for a study of a new cold medicine. Eleven of the volunteers are…

A: Please like...

Q: A vendor of electrical equipment received six low voltage transformers from the manufacturer. Three…

A: Method: By using the hypergeometric probability mass distribution

Q: Problem #8: The backoff torque required to remove bolts in a steel plate is rated as high, moderate,…

A: Multinomial distribution is the generalization form of binomial distribution. In which each event…

Q: Express the confidence interval 59.3 % 8.3% in interval form. Express the answer in decimal format…

A: The given confidence interval is 59.3%±8.3%.

Q: 2. Let X₁, X2, ..., Am be a random sample from a distribution with mean μ and standard deviation ₁,…

A: Solution

Q: What is the probability that Randolph stays within the restaurant for at most 18 minutes, i.e.…

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Q: C) Checking Understanding with an additional example: 1) Below is a table that lists all the…

A: 1) When flipping a four coins, the total outcomes are 24=16 Macro-state:  Macro-state is the overall…

Q: 24. An urn contains b blue balls and r red balls. They are removed at random and not replaced. Show…

A: Given:-                The probability that the first red ball is drawn at (k +1)th the ball drawn =…

Q: (b) Let Z be a discrete random variable with E(Z) = 0. Does it necessarily follow that E(Z³) = 0? If…

A: Given that, Z is discrete random variable. We know that,  E(z)= ∑Zi*p(zi) Where p(zi) is the…

Q: Find area left to z= 1.52

A: P(Z<1.52)=?

Q: The probabilistic method. 10 per cent of the surface of a sphere is coloured blue, the rest is red.…

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Q: The arrival rate of patients at a hospital counter follows Poisson distribution with a mean of 25…

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Q: Suppose that you choose three coins at random (without replacement) from a bag containing four 20p…

A: Given Bag containing 4 20p coin and 5 10p coin

Q: A radio station runs a promotion at an auto show with a money box with 15 $25 tickets, 11 $5…

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Q: 10 cards numbered 1-10 are Shuffled. The top and bottom Card are chosen. S: Sum of the two cards.…

A: We assume Var(X) is a typo of Var(S) as there is no X in the problem.   Let X be a random variable.…

Q: It has been claimed that the best predictor of today’s weather is today’s weather. Suppose that in…

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Q: Give an example of a not mutually exclusive events probability. The topic should be related to…

A: Generally, a mountain consists of trees, animals ,waterfalls,etc. According to probability,two…

Q: Suppose that Z is a discrete random variable with positive expectation. If Var(Z) = 3 and E(Z²) = 4,…

A: Given that, Z is a discrete random variable with, Var(Z)=3, E(Z2)=4 We have to find E(1 - 4Z), E(Z2…

Q: Researchers collected data on the numbers of hospital admissions resulting from motor vehicle…

A: The formulas used are Mean:        d¯=∑din Standard deviation:       sd=1n-1∑di-d¯2 95% confidence…

Q: Use the following sample to estimate a population mean μ. 65 65.2 47.1 85.4 63.9 68.3 57.1 69.6 36.8…

A: Given n=12 Alpha=0.01

Q: 1. We are rolling 2 fair dice each with n sides. We will roll both and the the largest outcome of…

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Q: A coin which has probability 0.49 of coming up Heads is tossed three times. Let Y be the number of…

A: Binomial probability distribution has utilized.

Q: Maria needed 8 gallons of gas to fill her car's gas tank. The mileage odometer read 37,100 miles.…

A: We have given that At the start of the trip, her car needed 8gallons to be filled

Q: A data-collection method that consistently either under-or-overestimates a characteristic of the…

A: The objective is to identify the bias caused by a data collection method that consistently either…

Q: Birth weights are distributed normally, with a mean of 3.39kg and a standard deviation of 0.55kg.…

A: Let X be the random variable from normal distribution with mean (μ) = 3.39, standard deviation (σ) =…

Q: Twenty-five percent of the academic staff of a large faculty are non-teaching academic staff. A…

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Q: = 'f X is either (a) Poisson with parameter λ, or (b) (1, 2), show that the distribution of Y…

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Q: 66 distributed with µ “ 150 and o “ 24. If samples of size 36 are drawn repeatedly a) what is the…

A: Given, μ=150, σ=24 and n=36.

Q: A pair of dice are tossed. What is the probability of getting a total of 8 by getting the sample…

A: A pair of dice are tossed.

Q: You run a factory that produces widgets (no, you'll never escape the widgets). Widget diameters are…

A: GivenMean(μ)=122standard deviation(σ)=10sample size(n)=16

Q: Solve the following independent system of equations. 5x−8y=−70 11x−4y=−18   Solution: x=   y=

A: Solution

Q: Tara is registering for a physics class.  The morning classes are 1st, 2nd, and 3rd periods, and the…

A: Dear student, If you find this solution helpful please upvote ? it. The solution is given below :