What is the variance of a continuous random variable X whose probability density is

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A: given data  A is event of sample space  S. we have to identify always true statement.

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Q: Write missing values in the statements a. and b. a. If Alex has scored 510 on the MCAT, and was at…

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A: Solution-: Given: a=7, b=10 We want to find the probability that on a given day the amount of coffee…

Q: ist Coll n 7 Videos 2 W S Mat 170-772 Elementary Statistics - Summer 2022 (Starts 6/6) Homework:…

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A: GivenAn average no.of cars arriving at a drive-thru fast food restaurant is 3 in tenminutesλ=1.5 for…

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A: Given data: Average rate = 36 people per hour To find: The probability that more than 6 people…

Q: 3 The probability that Adam goes to play basketball on any day is 5 On a day when he plays…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: dental insurance go in for regular check-ups. What percent of Americans overall will go in for a…

A: Here define events  See the dentist for regular check up = R  Person have dental insurance  = D

Q: a) Suppose that the joint density function of two random variables W₁ and W₂ is given by f(w₁, ₂) =…

A: Farmula used If X and Y are independent f(x,y)=f(x)f(y) Cov(X,Y)=E(XY)-E(X)E(Y)

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Q: is joint pdf with x,y=1,2,3,...,n then V(x/y) is

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Q: 7.16 What do millennials around the world want in a job? A Deloitte survey of millennials on…

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Q: 5. Let (S2, A, Pr) be an abstract probability space, and let A, B be events. Prove that Pr(B|A) +…

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Q: A random experiment is to draw one pencil at random from a box with 10 pencils of which 2 is red, 3…

A: GivenNo.of red pencils=2No.of blue pencils=3No.of yellow pencils=4No.of black pencils = 1Total no.of…

Q: . A die is thrown randomly 450 times. The frequencies of outcomes 1, 2, 3, 4, 5, and 6 a shown in…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Find the unknown number in the proportion 14 35 18 X

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Q: (You shall use calculator in completing this problem. Express your solution up to 3rd decimal…

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Q: ion. The statements as written may not be sufficient for a clear argument. You may need to change…

A: The reasoning are of 3 types: Deductive Inductive Abductive The premises are the…

Q: B: Calculate Expected value and standard deviation ? X p(x) 0 0.2 1 0.4 2 0.1 3 0.3

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Q: office of a mail-order company .find: I. The mean ii. The median The number of order 0-12 16-18…

A: Given.

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A: Here, Y= { a, b, c, d, e}. Also arrange 2 elements of the set with repetition The repetition is…

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A: Given data is Classes Number Freshman 522 sophomore 528 Junior 466 Senior 484

Q: 1. Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: f(x,y)     y=1   y=2     y=3    Total       x=1   0.10  0.05    0.02   0.17…

Q: The daily amount of coffee, in liters, dispensed by a machine located in an airport lobby is a…

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Q: In a refrigerator there are 17 bottles of diet soda, 8 bottles of regular soda, and 6 bottles of…

A: Solution Given That, In a refrigerator there are 17 bottles of diet soda, 8 bottles of regular soda,…

Q: Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: Given data is f(x,y) y 1 2 3 Total x 1 0.10 0.05 0.02 0.17 2 0.10 0.35 0.05 0.50 3 0.03…

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Q: the hypothesis test for an OLS parameter vn, and yet you know that the asymptotic Les are Normally…

A: The ordinary Least Square Method is the model for regression yn = β0+β1xn,1+...+βpxn,p+εn Standard…

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Q: Sixty-four randomly selected adults who buy books for general reading were asked how much they…

A: From the provided information, Sample size (n) = 64 Sample mean (x̄) = 1450 Standard deviation (s) =…

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Q: A random sample of size 81 is taken from a normal population having a mean of 80 and a standard…

A: Given n1=81 n2=49 Mean 1=80 Mean 2=70 Standard deviations 1=6 Standard deviations 2= 5

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A: Given that  A be the event is defined on a sample space S Let A=(1,2,3) , S=(1,2,3,4,5,6)

Q: Use emperial rule Mean speed sample 70mph Standard dievation 7mph Estimate speed between 56 and 84

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Q: 4. A. Two roommates, Jacquie and Therese, are not home often, so they have less than full interest…

A: Nash equilibrium          The Nash equilibrium is a decision-making theorem in the game theory. The…

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Q: Let X be a continuous random variable with a density function { [/x-9/5, 0, (a) Find P(X> 10). (b)…

A: Given that  X is a continues random variable by using the cdf and expectation rule we solve this…

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Q: A cordless telephone that is regularly priced at $50.00 is discounted $10.00. What is the discount…

A: Given  Telephone price=$50.00 Discount =$10.00