The variance of X is 15. Y=X+5. What is the Variance of Y?

A card is drawn randomly from an ordinary deck of playing cards. You win a prize if the card is a heart or the card is an ace. What is the probability that you will win the prize?

What is the cumulative probability at +1 standard deviation, for a random variable with normal distribution?

What is the kurtosis of a normal distribution?

The preseason odds that the Hartford Whalers will win The Stanley Cup Championship are 1/4, and the odds are the same for the California Golden Seals. What is the probability that BOTH will win the championship?

For a random variable X, E[X]=3 and E[X^2]=14. Var[X]=?

Which of these linear regression models is quadratic?

What is a Type II error?

What does R^2 (R-Squared) calculate?

What is the formula for the Pearsonian Coefficient of Skewness?

In a multiple regression model, what is the best way to test the joint significance of the independent variables?