Suppose that 43% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 4 places) or fraction P(dog and dog)=

Q: 7. (8!7!) 5!4! 12! 3!2! 10 8. 4!3! 45! 0. 43!5!

A: we know; n! = n*(n-1)*(n-2)*...*3*2*1 i.e.  n!=n*(n-1)!

Q: Question * The joint distribution of the random variable X and Y is given in the following table: Y…

A: Given that

Q: Then the mean number (to the nearest whole number) of students who will finish the exam in less than…

A: here use cumulative distribution of x as given by F(x)

Q: Question Let X and Y be two continuous random variables with joint probabilit given by: f(x, y) = {…

A: Solution

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Q: Determine if the events below are mutully Tossing a 4 or a number greater than 3 if one die is…

A: Determine if the events are mutually exclusive or non-mutually exclusive.

Q: 47. A box contains five orange and two green marbles. What is the probability that an orange meskl…

A: Given problem Given that   A box contains five orange and 2 green marbles. Orange marbles = 5…

Q: 5. Suppose (X, n2 0} is a Markov chain with state space (0, 1,2} and transition probability matrix…

A:

Q: ken two at a ken three at a

A: 1 2 3 4 5 6 j o y f u l The different arrangements formed from the 6 letters word = 6!

Q: (a) Suppose that 20 % persons in a large group of people are obese. If persons are checked one by…

A:

Q: Given the continuous random variables X and Y with joint probability density function: fx. y) = x+…

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Q: On average, 7% of the motors produced by a machine are faulty. A random selection of 10 motors are…

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Q: 4. Find the mean of the probability distribution of the random variable X, which 10 P(2) = 33 and…

A:

Q: 2. Let X and Y be two jointly continuous random variables with joint PDF fxy(x,y) = x + cx? 0<x<1,0s…

A:

Q: Question Suppose we are interested in the relationship between an individual's beown hair and skin…

A: Let X and Y be two discrete random variables defined over the sample space S. Then the discrete…

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A:

Q: 4. Getting a red card theM 5. The card is a face card. eldem 6. Drawing a numbered card. 7. The card…

A: ( 4 ) P ( red card ) = ? ( 5) P ( face card ) = ? ( 6 ) P ( numbered card ) = ? ( 7 ) P ( spade ) =…

Q: expected profit metal ball lands on 17, the player wins $175, Otherwise, the casino player? If you…

A:

Q: Round the point estimate to the nearest thousandth. 368 randomly selected light bulbs were tested in…

A: Given Data Sample Size, n = 368 Number of successes, x = 94

Q: Then the mean number (to the nearest whole number) of students who will finish the exam in less than…

A: The disyribution function is defined as F(x) = P(X ≤ x)  Let Y be the probability that a student…

Q: Question* The joint probability density function for X and Y is given by: x> 0, y > 0, 3r+yx> 0)d u…

A: For a continuous random variables, their probability distribution are categorized in various group…

Q: 3.Suppose that X and Y are independent random variables for which Var(X)=Var(Y)=3. Find the values…

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Q: Question Given the continuous random variables X and Y with joint probability density function: xy…

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Q: 24. Two cards are drawn at random from an ordinary deck of 52 playing cards one at a tiie wae…

A: ( a ) p ( two diamonds ) =?  ( b ) p( one ace and one queen ) =?…

Q: Dwayne, the manager for Lighting and Electronics at Home Hub, received a delivery of 3 boxes of…

A: Given Information: The manager for Lighting and Electronics at Home Hub, received 3 boxes of…

Q: 11. A box of Mrs. Donuts contains 8 honey dipped, 6 bavarians, and 7 chocolate filled donuts. How…

A: Given that honey dipped =8 bavarians = 6 chocolate = 7

Q: Question * Let X and Y be two continuous random variables with joint probability density function…

A:

Q: If P(X +Y > 5) = then a and b are equal to:

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Q: Show that if Y = ax + b (a = 0), then Corr(X, Y) = +1 or -1. We know Cov(X, Y) = Cov x, ])--)-I + b…

A: We need to show that, If Y=aX+b then Corr(X,Y)= +1 or -1

Q: Question * In the instant lottery with 20% winning tickets, if X is equal to the number of winning…

A: Probability is the chance of occurrence of an event.

Q: 4.Suppose that X is a random variable for which E(X)=µ and Var(X)=o². Show that E(X(X-1)]=µ(µ-1)+o?

A: It is given that E(X) = μ and Var(X) = σ2

Q: Let X be a random variable with probability distribution as shown below: 25 2 <x< 10 f(x) = {3x and…

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Q: I. Determine if the events below are mutually exclusive or not mutually exclusive.

A: here use basic of mutually exclusive events

Q: VIII.A man has 5 blue and 4 yellow balls in a bag. Without looking in the bag, he takes out a ball,…

A: It is assumed that c and d are actually questions 44 and 45 respectively. If there are n mutually…

Q: Suppose we roll a fair 6-sided dice once. a) Find the probability of rolling a 3 b) Find the…

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Q: In the instant lottery with 30% winning tickets, if X is equal to the number of winning tickets…

A: Given P=0.30 n=8 x=2

Q: Question * The joint probability distribution function of a discrete random variable is f(x, y) =…

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Q: these events? ittee

A: Here a committee of 4 is to be chosen from a group of 10 student. We have chosen Luis and Mercy…

Q: ) In an experiment, a ball is drawn from an urn containing 7 red balls and 8 yellow balls. If the…

A: The following information has been given: The number of red balls =7. The number of yellow balls=8.…

Q: Kym, Chris and Lee want to trave routes pass along their road and, wl that comes along. At any given…

A: Three passengers Kym, Chris, and Lee travel to the town  Bus Routes The probability of reaching…

Q: Question * Given the continuous random variables X and Y with joint probability density function: xy…

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Q: The accompanying summary data on Ceo, particle sizes (nm) under certain experimental conditions was…

A: From the given information, Range Frequency 3.0-&lt;3.5 6 3.5-&lt;4.0 14 4.0-&lt;4.5 28…

Q: Then the mean number (to the nearest whole number) of students who will finish the exam in less than…

A: The distribition function is defined as F(x) = P(X ≤ x)  Let p be the probability that a student…

Q: The A and B. third and the pueth. Company tenden For HCt itwill oltán Contract A ss fwo Contraco…

A: (i)   Obtain the probability that the company will obtain both contract.   The probability that the…

Q: Suppose that 70% of all diners choose vegetarian meals when eating away from home. On a randomly…

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Q: If a typist makes errors at random at a mean rate of 3 per page, then the probability of making at…

A: Let X denote the number of errors on two pages.  It is given that Number of errors per page = 3,…

Q: B. Find the Expected Frequencies (E) based on the franchisor's reported relative frequencies. This…

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Q: VI. A three-digit number with no repeated digits is made from the digits 1 to 7. What is the…

A: A three-digit number with no repeated digits is madie from the digits 1 to 7. We need to find the…

Q: Test scores for a given class are normally distributed with a mean of 80 and standard deviation 12.…

A: Solution-: Given: μ=80,σ=12 Find the test score that separates the top 10%.