A student working on a physics project investigated the relationship between the speed and the height of roller coasters. The student collected data on the maximum speed, in miles per hour, and the maximum height, in feet, for a random sample of 21 roller coasters, with the intent of testing the slope of the linear relationship between maximum speed and maximum height. However, based on the residual plot shown, the conditions for such a test might not be met. 40 30- 20- 10- 0- -10 -20- -30- -40- 50 100 150 200 250 300 Height Based on the residual plot, which condition appears to have becen violated? (A) The errors are independent. (B) The sum of the residuals is 0. (C) The expected value of the erors is 0. (D) There is a linear relationship between the response variable and the explanatory variable. (E) The variance of the response variable is constant for all values of the explanatory variable. Residuals

Q: When might you use one or the other?

A: Generally, both covariance and correlation are used to know about the linear relationship between…

Q: This answer is incorrect. Can you try again?

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Q: they are both wrong

A: Apologies for the inconvenience. I have rechecked the works and I am solving again them for you. The…

Q: Is the gender of the  student independent of the grade of the student? Use 11th grade and females in…

A: Condition for Independence: P(A and B)=P(A)*P(B) From the given table, P(A and B)=n(A and B)/Total…

Q: Answer seems to be wrong

A: Given function:- 8x2-y2-7z=362

Q: it said your answer was incorrect

A:

Q: The value of a should reflect the consequences of incorrectly rejecting H, if it is true True False

A: Given that  Level of significance (α)    We know that  Type I error : Rejecting the null hypothesis…

Q: everything is incorrect

A:

Q: The answer

A:

Q: Could you explain (b) as well?

A: We have to prove the following proofs:(i)rank(AB)<=min{rank…

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

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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: Everything was right except for C

A: As you said I am solving part C

Q: 1. Compare the following numbers: 4.69 4.171

A: Dear student as per our rule in one session we can only solve one question please post the other…

Q: Find et, where A = 5 3 -3 -1

A: Given That : Matrix A=5-33-1. To Find : eAt