a. Sxy (Round to two decimal places as needed.) b. rxy = (Round to two decimal places as needed.) c. Choose the correct answer below. O A. There is a positive linear relationship between x and y. O B. There is no linear relationship between x and y. O C. There is a perfect positive linear relationship between x and y. O D. There is a negative linear relationship between x and y.

Determine ; and a from the given parameters of the population and sample size. H= 82, o 21, n= 49 Hi = DD

In the US, 43.9% of all people have type O blood, 40.6% have type A blood, 10.8% have type B blood and 4.7% have type AB blood. A researcher wants to see if the distribution of blood type is different for millionaires. The table below shows the results of a random sample of 3488 millionaires. What can be concluded at the a = 0.05 significance level? a. Complete the table by filling in the expected frequencies. Round to the nearest whole number: Frequencies of Blood Type Outcome Frequency Expected Frequency 1521 A 1427 В 376 АВ 164

The number of regular season wins for 10 college football teams in a given season are given below: 15 5 13 | 1 2 10 15 4 7 What is the population variance? Simplify your answer. Round to the nearest hundredth as needed.