A summary measure called the correlation describes the strength of the linear association. Correlation summarizes the strength and direction of the linear (straight-line) association between two quantitative variables. Refer to the following data and then answer the following - x = Cigarettes smoked per day = [ 4, 5, 8, 10, 11] y = Years lived = [50, 48, 45 , 42, 41] What is the value of the Pearson's correlation coefficient? Hint: from scipy. stats import pearsonr corr, pvalue= pearsonr(list1,list2) print(corr)

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?