Please help i will mark branliest

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Find the slope of the line that passes through the points (-3, -1) and (0, 3). 3/4 0 4/3

The discrete random variables x and y take integer values with joint probability distribution given by f (x,y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x,y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).