1. Given the values of the variables X and Y, evaluate the following

summations.

Directions: Given the values of the variables X and Y, evaluate the following summations. X1 = 2 X2 = 2 X3 = 4 X4 = 1 Y1 = 3 Y2 = 1 Ya = 1 YA = 2 1. Etix 2. EMY AS 3. Et, XY 4. Et X1 -YComplete the table below and find the mean of the following probability distribution. X P(X) X . P(X) O 0.17 0.34 2 0.24 3 0.20 A 0.05 The mean of X isA traffic engineer is interested in the number of vehicles reaching a particular crossroads during periods of relatively low traffic flow, The engineer finds that the number of vehicles X reaching the crossroads per minute is governed by the probability distribution below. Calculate the expected value of X. X 0 1 2 3 4 P(X) 0.37 0.39 0.19 0.04 0.01