An automobile dealer wants to see if there is a relationship between monthly sales and the interest rate. a random sample of 4 months was taken. the results of the sample are presented below. monthly sales (y) interest rate (in percent) (x) 22 9.2 20 7.6 10 10.4 45 5.3 a) use the method of least squares to compute an estimated regression line. b) obtain a measure of how well the estimated regression line fits the data.

Select true or false to tell whether the following conditional p q is true or false. use the truth table if needed. if a week has seven days, then a year has twenty months.

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

Explain why the factor 1.5 is broke. into two numbers in the model.