Question 7 Let x be the random variable with an average equal to 10 and standard deviation of 5. A sample size of 50 is taken from the population. Find the probability that the sum of observation is a. less than 800? b. Between 600 and 700?

Q: In a bulb factory, three machines, A, B, C, manufacture 60%, 25% and 15% of the total production…

A: Let D=defective productsGiven,P(A)=0.60P(B)=0.25P(C)=0.15P(D|A)=0.01P(D|B)=0.02P(D|C)=0.01

Q: Use the attached random digit table to estimate the probability of the event that at least 2 people…

A: Given information, There are group of 5 people in the experiment. Using the random number table, the…

Q: Problem #2: Let X be a continuous random variable with probability density function 16xe 4x x > 0 o…

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Q: A manufacturer produces a commodity where the length of the commodity has approximately normal…

A: Given First Question) Given Xbar=5.2 Standard deviation=0.7

Q: 6. Three points A, B, C are chosen independently at random on the circumference of a circle. Let…

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Q: 6. An unfair coin is flipped repeatedly, where P(H) = p = 1- q. Let X be the number of flips until…

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Q: 3. Let X be a random variable with distribution function P(X ≤x} = 0 x 1 if x ≤ 0, if 0 1. Let F be…

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Q: We toss n coins, and each one shows heads with probability p, independently of each of the others.…

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Q: You roll a conventional fair die repeatedly. If it shows 1, you must stop, but you may choose to…

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Q: The Simple Linear Regression relationships of Systolic Blood Pressure (SBP) on Age (in years) yields…

A: Here in this regression equation, intercept is 199.30 Option four is correct interpretation of the…

Q: Randolph enters a restaurant and queues in line to order his favorite food. Suppose that the…

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Q: : Let (X, r≥ 1} be the integer-valued identically distributed intervals between the times of a…

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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: For a certain survey, software reports the results shown below for responses on the number of times…

A: Given that, Sample size (n) = 240  Mean = 4.4  Standard deviation = 2.9

Q: Q1: Suppose the number of customers X that enter a store between the hours 9:00 a.m. and 10:00 a.m.…

A: Please note that as per our guidelines if multiple questions are posted we can answer the first…

Q: 27. Let X denote the proportion of allotted time that a randomly selected student spends working on…

A: We calculate the first moment for the above pdf. E(X)= M= ∫x X*f(x) dx  = ∫01 x(θ+1)*xθ dx  = (θ+1)…

Q: Q2. Given the following Bayesian network where all random variables are binary, calculate the joint…

A: P(A) 1 0.4 0 0.6   A B P(B|A) 1 1 0.8 1 0 0.2 0 1 0.5 0 0 0.5   B C P(C|B)…

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: kg and a standard deviation of 2.4 kg. What is the 95% confidence interval? Write the lower value of…

A: It is given that  Sample mean, X̄ = 30 Sample standard deviation, s = 2.4 Sample size, n = 50

Q: Suppose that 6 female and 5 male applicants have been successfully screened for 6 positions. In how…

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

Q: Find the margin of error for a 95% confidence interval for estimating the population mean when the…

A: CI=0.95α=1-0.95=0.05s=90we have to find out the margin of error for the given dataformula of margin…

Q: A normal distribution has a mean of 183 and a standard deviation of 9.4. Find the probabil that a…

A: Given that Population mean =183  Standard deviation =9.4 We have to find a...P(185≤X≤190)…

Q: The scores on a psychology test were normally distributed with a mean of 65 and a standard deviation…

A: According to empirical rule 68%,95% and 99.7% data fall within one ,two and three standard…

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: A political candidate with 84115 registered voters in their electorate, wants to survey these voters…

A: Given that Number of voters registered =84115 Number of persons respond =7667 41% vote for a…

Q: An urn contains n red balls and m blue balls. These n+m balls are randomly drawn one by one from the…

A: Given that an urn contains n red balls and m blue balls, n+m balls are randomly drawn one by one…

Q: If n-470 and p (p-hat) -0.25, find the margin of error at a 99% confidence level Give your answer to…

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Q: Given that the variances of random variables X and Y are 484 and 625, respectively. The correlation…

A: Given that  Var(X) = 484 , Var(Y) = 625 Corr(X,Y) = -0.52

Q: ssword with 5 characters is randomly selected from the 26 letters of the alphabet. What is the…

A: given data, 5 characters is randomly selected from the 26 letters of the alphabet.we have to find…

Q: A stack of Magic cards consist of 4 land cards and 6 creature cards. You draw 4 cards from the…

A: From the provided information, A stack of Magic cards consist of 4 land cards and 6 creature cards.…

Q: 9. Let X and Y have the joint density f(x, y) = cx(y-x)e-y, 0≤x≤y <∞0. (a) Find c. (b) Show that:…

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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: The cadet engineers of a service company consists of 60% electrical engineers and 40% civil…

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Q: Assume that a procedure yields a binomial distribution with a trial repeated n = 5 times. Use some…

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Q: Can anyone solve 3 problem

A: this problem we have the binomial distribution P(X=x)=nxpxqn-x From given data we have : n=5 p=0.6…

Q: You repeatedly roll a biased die, where, on any given roll, the probability of each outcome is(pi:…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: A population of values has a normal distribution with = 51.9 and o= 65.5. If a random sample of size…

A: given data normal distributionμ = 51.9σ = 65.5n = 10

Q: 3 Σ cxitz= i=2 N Σ (2x1) = i=1 Ẽ

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Q: The Southside Bowling Alley has collected data on the number of children that come to birthday…

A: Given data is k 5 6 7 8 9 10 P(X=k) 0.15 ? 0.1 0.25 0.1 0.2

Q: A production manager at a wall clock company wants to test their new wall clocks. The designer…

A: Given: mean(μ)=14 standard deviation(σ)=16=4 n=40

Q: Using the Law of Total Expectation (Partition Theorem for Expectation), or otherwise, determine E (Y…

A: Firstly it is desired to calculate E(X) and E(Y|X) to use the law of Total expectation.

Q: 5.20. Use the definition (5.15) of the probability of an event to prove the following basic facts…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....…

Q: Sabreena is playing a card game, and the odds of her winning after drowning the next card are 5:7.…

A: Given data The odds of winning after drowning the next card are 5:7

Q: ● Example: The distribution function of the random variable X is given by F(x) = 1107/TWIT 0, x < 1…

A: given data  the discrete cumulative distribution function is given F(x) = 0   ;x&lt;113 ;1≤x&lt;412…

Q: A fair coin is tossed n times. Show that, under reasonable assumptions, the probability of exactly k…

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Q: Bob is in love with Alice, but sadly, Alice has no interest in Bob. Every time Bob tries to approach…

A: Negative correlation: when ine variable is increasing and other is decreasing simultaneously or vice…

Q: A fair coin is tossed n times. Show that, under reasonable assumptions, the probability of exactly k…

A: Let p be the probability of getting head. Then p = 1/2 as the coin is fair. Let X denote the number…

Q: The state of Colorado has studied a large population of pregnant women applying for maternity leave.…

A: GIVEN DATA μ = 2.33σ = 0.44n = 6find sampling distribution

Q: Express the confidence interval (595.3, 720.3) in the form of ± ME. + ME= Submit Question

A: GIVEN  DATA,  the confidence interval  is (595.3,720.3)we haveto find out the sample mean and margin…

Q: If you draw a card with a value of four or less from a standard deck of cards, I will pay you $41.…

A: From the given information, Aces considered the highest card in the deck then the numbers,2, 3 and 4…