The probability mass function of a discrete random variable Y is given by PO) = }6-y' y = 2,3,4, 5 elsewhere For what value of k is p(y) a probability mass function? ) Construct a probability mass table for y Find the expected value of y Find the standard deviation of y

Q: Let X1,..., X10 be independent chi-squared random variables with X; ~x²(2) Answer the following…

A:

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A: Given : x~U50.0, 52.0 we have to find, P50.5<X<51.9

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Q: iscrete support of the random variable X

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A: Given that Mean = 1510, SD = 345.1 And sample size n = 44

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A: Total number of Marbles =N=15Number of RED marbles =k=6Number of other marbles =9The Random variable…

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Q: ~ N(60, 13). Suppose that you form random samples of 25 from this distribution. Let X be the random…

A: Givenx~N(60,13)sample size(n)=25

Q: Test1 Marks of STAT200 students is known to be normally distributed with a mean of 34 and standard…

A:

Q: For a normal variable X~ N(μ = 36.9, o = 1.9), find the probab- P(X < 41.05): P(X<41.05) places)…

A: X~N( μ , ?)μ=36.9   , ?=1.9Z-score =( x - μ )/?

Q: Midterm 2 Define Sample proportion Random Variable Statistic Margin of error given that PCA) = 0.4…

A: As per our guidelines I can solve only first question. Kindly post the remaining questions again and…

Q: A weighted coin has a 0.664 probability of landing on heads. If you toss the coin 28 times, what is…

A: Given data P(head) = p = 0.664no. of trials (n) = 28x = no. of time head tossedP(x=X) = nCxpxqn-x…

Q: A sample of 250 employees of a company is selected, and the average age is found to be 35 years.…

A: The average is 35 years.

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.