Find the mean and standard deviation of the sum of the scores. Find the mean and standard deviation of the average of the scores. In the dice experiment , select the following random variables. The sum of the scores. The average of the scores.
Events Suppose that A and B are events in a random experiment.
I A and I B . 31. Suppose that A B . Find the covariance and correlation between A and B . The linear function can be used to estimate Y from an observed value of X . Moreover, the solution will show that covariance and correlation measure the linear relationship between X and Y .