A giant hummingbird can flap its wings at a rate of 13 flaps per second, how many times will a giant hummingbird flap its wings in 1.00 mins? (Given 1 min = 60 s)

Angles 1 and 2 are complimentary angles. angle 1 = 52 degrees. what is the measure of angle 2?

Match each set of points with the quadratic function whose graph passes through those points

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).