A probability density function for the random variable X is given by Pi = ki, where k is a constant. What value must k be if X takes on integer values between 0 and 25? Round your answer to five decimal places.

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.2…

A: Mean()=2.2 yearsStandard deviation()=0.7 years

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A: The probability describes how likely an event occurs.

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A: Given,

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A: XY587941215261216913

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A: Mean () =15standard deviation () =4sample size (n)= 37

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Q: lo What are the marginals of X and Y? oth

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A: Suppose that information about gender is coded as "1" if the person is female, and "0" otherwise.…

Q: Out of 187187 randomly selected adults in the United States who were surveyed, 7171 exercise on a…

A: A sample of 187 randomly selected adults were surveyed of which 71 exercise on a regular basis.

Q: 4.1-3. Let the joint pmf of X and Y be defined by f(x, y) = x+y 32 a. Find fx (x), the marginal pmf…

A: According to the Bartleby guidelines experts solve only one question and a maximum of three sub…

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Q: Correlation and causation are the same concept. O True False

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Q: A meat-processing company in Alberta produces and markets a package of eight small sausage…

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Q: Can you employ a large sample 2 sample t test  when n = 50 and ypu have paired data?

A: Paired t test is employed in a dataset when the dataset  are linked to each other.

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A: From the provided information,

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Q: 4.1-3. Let the joint pmf of X and Y be defined by x + y 32 f(x, y) = a. Find fx (x), the marginal…

A: f(X,Y)X=1X=2TotalY=1Y=2Y=3Y=4Total1

Q: help with missing answers

A: The estimated regression equation is .

Q: standardized residual 0.8284 (to 4 decimal places) -0.577: (to 4 decimal places) -1.133 (to 4…

A: The residual from the regression model is the difference between the estimated and the observed…