2. The graphs below show the same data but with different fiUed curves. Published datasuggests that the rela?onship between the dependent and independent variables is bestdescribed by a linear equa?on.Which two (2) of the following statements about these graphs are INCORRECT?A. FiUed equa?on B is the best because it has the highest R 2 value.B. The fiUed equa?ons should not be forced through 0,0 as we have no data for this.C. FiUed equa?ons A and B must be beUer as these conform to the theore?calrela?onship between the variables.D. FiUed equa?on A has a R2 value under 0.8 so it must not be used.E. There is no jus?fica?on to use the non-linear fits in C and D.

Which one of the following is NOT TRUE for graphical representation of experimental data (on a regular graph paper)?Group of answer choicesA best-fit line is drawn if possibleDependent variable is plotted in y-axis (vertical axis) and independent variable is plotted along x-axis (horizontal)Vertical and Horizontal scale must be the sameAttempt should be made to use the maximum graph area possibleVertical and Horizontal scale can be different

True or False: The following data plot represents data that is linearly separable?Question 1Select one:TrueFalse

Three scatter plots are shown below. Use them to answer the questions below the graphs.A. For one of the three scatter plots, r = –0.83. Which one do you think it is?Explain.B. Which graph has a least-squares fit line with the equation y = 0.6x + 1.75?Explain.

Which of the following statements are correct?Question 8Select one or more:a.By convention, the dependent variable is usually plotted on the vertical axis.b.The dependent variable must always be plotted on the horizontal axis.c.The axis on which we usually plot the dependent / independent variable is determined by convention. However, this convention may be overridden by other graphing conventions.d.By convention, the dependent variable is usually plotted on the horizontal axis.e.The variable which we choose / control the values of, is usually plotted on the vertical axis.f.Historically, the vertical axis was sometimes known as the abscissa.

Which of the following statements is true about the graph of a linear equation with a positive slope?