The PDF of the sum of random variables is equal to the sum of their individual PDFS The CDF of the sum of random variables is equal to the sum of their individual CDFS The average of the sum of random variables is equal to the sum of their individual averages The variance of the sum of the random variables is equal to the sum of their individual variances O None

Q: The degrees of freedom are directly related to

A: Let, X1,X2,...,Xn be the samples from normal distribution. Let, S2 be the sample variance.  We know…

Q: answers were wrong.

A: X Frequency 0 2 1 6 2 8 3 36 4 50 5 68 6 55 7 36 8 19 9 10 10 4

Q: 0 is within the scope of the model. What is 1.29. Refer to regression model (1.1). Assume that X =…

A:

Q: Something is traveling 7 miles per hour South. This could be represented by 7 = ( )

A:

Q: What is the value for s3?

A:

Q: Which is the right option?

A: Pascal's identity states that Ckn=Ckn-1+Ck-1n-1 for any positive k and n. here  Ckn  are binary…

Q: it said your answer was incorrect

A:

Q: The table shows the movement of a stock for 30 randomly selected trading days. "Up" means the stock…

A:

Q: What is the error?

A: The formula of standard deviation is:

Q: e. Which

A: From given figure it is clear that

Q: It is wrong. It says they are both incorrect.

A: X-intercepts are found by substituting y=0 in the given function.

Q: the answer is wrong

A:

Q: Match these values of r with the accompanying scatterplots: 0.755, – 0.404, 0.993, - 0.755, and - 1.…

A: r: correlation coefficient. This determines the level of relationship between 2 variables. Its value…

Q: What is the Ho and Ha

A: Null hypothesis  is the hypothesis  of no difference While alternative  hypothesis is the claim that…

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.