Let S = {1,2,3,4,5,6,7,8} be a sample space with P(x) = kx where x is a member of S,
and k is a positive constant. Compute E(S). Round your answer to the nearest hundredths.

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the