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: 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: When might you use one or the other?

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

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

A:

Q: are you sure about A and D?

A: The given statement is "if the pentagon is purple, then the circle is green" (Converse is not true)

Q: What is the value for s3?

A:

Q: what would be the conclusion?

A: From the obtained results, the p-value is 0.0676.

Q: The answer

A:

Q: this is incorrecta

A: The given functions,f(x)=2x+4g(x)=x-1

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…

A:

Q: e. Which

A: From given figure it is clear that

Q: Everything was right except for C

A: As you said I am solving part C

Q: so what are the values of d and c?

A: