Let X and Y be discrete random variables with joint probability mass function P(X = x, Y = y) =(x + 1)(y + 2) / 54 , for x = 0,1,2 and y = 0,1,2. 0, elsewhere. Calculate E(Y|X = 1).

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.