True - False and Fill In Questions A scatter plot is a histogram of the data. 2.

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True - False and Fill In Questions A scatter plot is a histogram of the data. 2. for y0 would be 34.2 would be We can conclude then that x causes y determination would be approximately 0.56. is listed below. A regression line was calculated as y = 30.1-0.52x. Ifx-7, the predicted value A regression line was calculated as y- 5.4-2.1 x. The y - intercept of this line It was found that there was a significant relationship between two variables. A correlation coefficient r was calculated to be 0.75. The coefficient of A pair of dice are rolled 6 times. The number of spots on the face of each die 5. 6. Die 1 5 4 6 2 3 6 Die 2 3 2 51 5 6 7. 8. 9. 10. the values of y increase also. relationship between the variables. coefficient associated with this line would be negative. The value of the correlation coefficient would be 0.35. A correlation coefficient of 0.98 would mean that as the values of x increase, If a correlation coefficient is negative, this indicates that there is no A regression line was calculated as y = 102.5-2.69s. The correlation A correlation coefficient was computed for n 12, = 0.05, and r 0.692. Using the t test for the correlation coefficient, what is the test value? A. 3.18 B. 3.64 C. 3.03D. 3.94 What would you conclude if 40 pairs of data produce a linear correlation coefficient of r =-0, 72 for = 0.05? I1. 12. What would you conelude if 18 pairs of data produce a linear correlation coefficient of r 0.82 for = 0.05?

Explanation / Answer

1. Scatter diagram just gives idea about linear relation its not histogram. So answer is False

2. y=30.1-0.52x, for x=7, y=26.46. So answer is false

3. Here intercept is 5.4

4.Correlation doesn't means causual, so answer is False

5. Here r=0.75, So R^2=0.56, hence answer is True

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