∑y = 120 ∑ x = 1,280 ∑ x2 = 165,200 ∑ xy = 15460 Where y is measured in millions of dollars and x in cents. Estimate the linear regression equation of sales revenues on gasoline price.

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

What expression is equivalent to 42x-56y

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i