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Linear Regression & Correlation Coefficient Practice Would you consider the data to be accurate, precise or both? Justify. 1. 10 T 2. The table below shows the percentage of females in the U.S. labor force at various times throughout history Years after 1900 | 50 Percentage | 60 T70- T80-T90 8.1 42.5 45.3 100 52.0 Enter the data into your calculator or excel and give the equation. Round slope & y-intercept to 2 decimal places a. b. What is the meaning of the slope? Of the y-intercept? Predict the percentage of women working in 2010. year(s) when the percentage of women in the labor force reaches 68.0%. c. Predict the d. What is the correlation coefficient of the data? What does the r2 value mean?
The correlation coefficients for the six scatter plots shown below are -0.85, 0.40, 0, 0.50, 0.90 and 0.99. Match each scatter plot with the correct correlation coefficient. 3. a. b. C. d. e.
math   Statistics-And-Probability   
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Answer #1

Q 1.

We can not

prcise. Bacawe, the dan it deu nthar aceuit, And,thu date have prese prnta: 2.633.4 42.5 45.3 52.o resim Slepe .4456 a unit peruntag 0.44 in 2010 2 03 now thar

explained by the regressor.

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