After taking an300, c& a decides to use excel to perform a linear regression forecast on the sales of hdtv and obtains the following summary output of the regression analysis. what conclusions can be drawn?
regression statistics
multiple r
0.13
r square
0.02
adjusted r square
-0.18
standard error
3.18
observations
7
linear regression is a good forecast method because the correlation coefficient is 0.13.
linear regression is a good forecast method because the correlation coefficient is 0.02.
linear regression is a not good forecast method because the correlation coefficient is 0.13.
linear regression is a not good forecast method because the correlation coefficient is -0.18.
linear regression is not a good forecast method because the correlation coefficient is 0.02.

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

40 describe the outliers from the scatter plot.

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4