JUST QUESTION 31 PLEASE E4-31. Use this information to answer questions #30 - #35: A set of n = 15 pairs of scores (X and Yvalues) has SSx = 4, SSy = 25, and SP = 6.30. What is the Pearson correlation (r) for these data? (SHOW YOUR WORK)31. How many degrees of freedom (df) do you have?

We have given that, SSx = 4 SSy = 25 SP = 6

Answered: 30. What is the Pearson correlation (r)…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2CYU

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For the following exercises, consider the data in Table 5, which shows the percent of unemployed ina city of people 25 years or older who are college graduates is given below, by year. 40. Based on the set of data given in Table 6, calculate the regression line using a calculator or other technology tool, and determine the correlation coefficient to three decimal places.
Cable TV The following table shows the number C. in millions, of basic subscribers to cable TV in the indicated year These data are from the Statistical Abstract of the United States. Year 1975 1980 1985 1990 1995 2000 C 9.8 17.5 35.4 50.5 60.6 60.6 a. Use regression to find a logistic model for these data. b. By what annual percentage would you expect the number of cable subscribers to grow in the absence of limiting factors? c. The estimated number of subscribers in 2005 was 65.3million. What light does this shed on the model you found in part a?
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30. What is the Pearson correlation (r) for these data? (SHOW YOUR WORK) 31. How many degrees of freedom (df) do you have?