If y is the dependent variable and is the independent variable. And if the sum of the cross product of the deviations is Σ(x - x)(y-7)= -53, and also if 3.49 and 2.55 are the standard deviations for the independent and dependent variables, respectively, and we have a sample size of 20, what is the correlation coefficient between X and y? Note: 1- Do not round intermediate numbers. 2- Round your final answer to 2 decimal places. Your Answer: -0.31

You wish to determine if there is a positive linear correlation between the age of a driver and the number of driver deaths. The following table represents the age of a driver and the number of driver deaths per 100,000. Use a significance level of 0.05 and round all values to 4 decimal places. Driver Age Number of Driver Deaths per 100,000 21 19 27 20 58 31 77 31 47 24 50 26   Ho: ρ = 0Ha: ρ > 0 Find the Linear Correlation Coefficient    r =  Find the p-value   p-value =    The p-value is Greater than αα Less than (or equal to) αα   The p-value leads to a decision to Reject Ho Accept Ho Do Not Reject Ho

If y is the dependent variable and is the independent variable. And if the sum of the cross product of the deviations is (x − x)(y – y)= -54, and also if 10.20 and 5.91 are the variances for the independent and dependent variables, respectively, and we have a sample size of 16, what is the correlation coefficient between X and y? Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round your final answer to 2 decimal places. Your Answer:

ps-5