A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23, 0.3, 0.2 the expected value is 3 True .a False .b

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A: Given: Let us consider the given data, Parameter, p=0.25 Determine  a) Chebyshev's inequality b)…

Q: A random variable X has unknown mean and variance o² = 25. To determine the mean u, one may…

A: Solution: From the given information, X has mean µ and variance σ2 = 25.

Q: I'll upvote your answer, otherwise I' downvote Suppose that the weight of an newborn fawn is…

A: According to our policy we can answer only first three part for remaining please repost the…

Q: 00 (Note: Express your answers as decimal fractions rounded to 4 decimal places (if they have more…

A: Given: The given matrix is as follows, P=0.40.10.50.30.70⊥00

Q: Find the probability that 2 successive reds are drawn from bag A. B. Find the probability that a red…

A: here given ,  there are total 7 balls in bag A and 7 balls in bag B  Bag A contains 3 red and 4…

Q: a. P(Z -1.76). P(Z > 2.42). b. C.

A: We will use Standard Normal table to find the required probabilities. Note : According to our…

Q: A group of 30 manufactured of concrete pipes contain 8 defective pipes and 22 non-defective pipes. A…

A: Solution-: Given: N=30, n=5,M=8, X=3 We want to find P(exactly 3 defective pipes)=?

Q: Find the following probability for the standard normal distribution. P(Z ≥ 0) O 0.5 0.68 O 0.025

A:

Q: Based on previous weather records, the probability that the city of Calgary will have a "White…

A: Given: Probability that the city will have a White Christmas on Dec 25th is 25=0.4

Q: 10-When you toss a coin once, what is the probability of getting the picture and the writing…

A: here when tossing coin , there are two possible outcomes are picture and writing

Q: A bowl contains twelve batteries of which four are new, five are used (working) and three are…

A: Solution: Let X be the number of new batteries chosen and Y be the number of used batteries chosen.…

Q: how did you get 10/165

A: Given that, No. of freshman = 2, No. of sophomore = 1, No. of juniors =3, No. of seniors = 5 Total…

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

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Q: What happens to the width of a confidence interval as we increase confidence level, i.e as we…

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Q: 1. A weighted die is tossed 30 times.  The probability of rolling a 6 with this unfair die is 0.25.…

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

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

A:

Q: Question 6 A simple dice game involves the player paying $1 to play. Two fair six-sided dice are…

A: Two fair 6 sided die rolled. Profit and loss according to output is mentioned in question. We have…

Q: Q5. An electronic assembly consists of two subsystems A and B. The following probabilities are…

A: Given that, an electronic assembly consists of two subsystems A and B. The following probabilities…

Q: Which game should he play if he wants the best chances of winning? Explain the answer

A: HERE GIVEN , Mark has the choice of playing two different games. When he plays poker, the odds in…

Q: For the given probability distribution, X f(x,y) 1 2 5 0.25 0.2 y 10 0.2 0.15 15 0.15 0.05 Determine…

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Q: The p-value will correspond to a two-tailed area using  t = 1.124 with n − 2 = 3  degrees of…

A: The test is two tailed.

Q: Q2/suppose there were six kinds of toppings that one could order for a pizza. How many combinations…

A: Here given there are total 6 toppings are available  Here use combination

Q: Q6/ Find the probabilities that a random variable having the standard normal distribution will take…

A: here given ,  a random variable with standard normal distribution have mean = 0 and Standard…

Q: 6. if the scores of samples of students are 16 12 10 11 14 13 15 (a)13 (b)12 (c)11 then median is

A: Median is the middle most items. There are 8 items. The data is arranged in ascending order is given…

Q: 1. In how many ways can the position of president and secretary of an organization be  filled if…

A: HERE AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS  here use counting Principle  there are total 4…

Q: How many favorable outcomes are expressed in the probability 7/9

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Q: For the values 2, 4, 6 thee variance is 1.66 O 2.77 O 2.11 O 1.33 O 2.66 O O

A:

Q: from. Determine the number of ways the greenhouse could select 4 tropical plants and 4 exotic plants…

A: here given ,  A local greenhouse is creating a plant display for a mall. The greenhouse currently…

Q: (a) Find the probability that the person chosen is male given he is employed. (b) That the person is…

A: here given table          Employed   Unemployed        TotalMale     460             40…

Q: times at each screening station follow an exponential distribution and that arrivals follow a…

A:

Q: The average number of classic comic books sold per week at your store is 28. What is the probability…

A: Given : mean , μ= λ = 12 Let x be a Poisson random variable

Q: particle is moving on the unit circle x² + y² = 1 at the constant angular ing at the initial…

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Q: The following table gives the data for the average temperature and the snow accumulation in several…

A: Given data: Average temperature 42 31 24 45 38 18 33 21 25 37 Snow accumulation 9 12 27 7 15 22…

Q: The average number of classic comic books sold per week at your store is 28. What is the probability…

A: Given : mean , μ= λ = (28*3)/7 =  12

Q: A waiting-line system that meets the assumptions of M/M/1 has A-1,-4. For this system, what is the…

A: Given Lamda=1 Mu=4

Q: a) between 0.87 and 1.28; b) between -0.34 and 0.62; c) greater than 0.85; d) greater than -0.65.

A:

Q: .) Create a probability distribution for a player’s winnings in one game. b.)Find the expected…

A: here given , A casino game involves a deck of 20 cards, 3 of which have a gold star on them. A…

Q: Use the calculator displays to the right to make a decision to reject or fail to reject the null…

A: From the provided information, Sample size (n) = 45 Sample mean (x̄) = 59.25 Population standard…

Q: Valentino's Pizzeria sells four types of pizza crust. Last week, the owner tracked the number sold…

A: The answer is explained below,

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: From the provided information, Confidence level = 99% Margin of error = 0.01

Q: Q3/ The probability that a consumer will rate a new antipollution device for cars What are the…

A: Given: P(Very Poor) = 0.07 P(Poor) = 0.12 P(Fair) = 0.17 P(Good) = 0.21 P(Very Good) = 0.32…

Q: Q6/ Find the probabilities that a random variable having the standard normal distribution will take…

A: Givena)between 0.87 and 1.28

Q: The probability that a man will live 10 more years is 0.25, and the probability that his wife will…

A: a. The probability that a man will live 10 more years is 0.25, and the probability that his wife…

Q: Suppose· X · has probability-density-function (p.d.f) fx(x) = 7(1+x²)³ ° which one is the p.d.f..…

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Q: The Venn diagram shows sets A, B, C, and the universal set U. Shade (AUB)' n C' on the Venn diagram.…

A: As Prof. P. K. Giri said "Euler Venn Diagram or commonly known as Venn Diagram, is a diagrammatic…

Q: The average number of classic comic books sold per week at your store is 28. What is the probability…

A: Given : mean , μ= λ = ( 28*3)/7 =  12

Q: next problem with the production line diagnosed as being due to an initial repair that was…

A:

Q: Consider a hypothetical state that has 8 representatives and a population of 1.2 million. Party…

A: Solution: From the given information, a state has 8representatives and a population of 1.2 million.…

Q: The line width of for semiconductor manufacturing is assumed to be normally distributed with mean of…

A: Given: Mean μ=0.4 Standard deviation σ=0.15

Q: The random variable X represents the number of cars owned by a household in a subdivision with 1000…

A: Given data is No. of cars(x) 0 1 2 3 4 No .of households 125 428 256 108 83