Objective type problems based on descriptive
1. Which of the following isn't a required condition for a discrete probability function?
1) f(x) >= 0 for all values of x
2) Sum of f(x) = 1
3) Both "a" and "b"
4) None of the above is correct
2) A measure of average value of a random variable is called a (n)
1) Variance
2) Standard deviation
3) Expected value
4) All the above answers are correct
5) None of the above is correct
3. Presume that you have a binomial experiment with p = 0.5 and a sample size of 100 and the expected value of this distribution is
1) 0.50
2) 0.30
3) 100
4) 50
5) None of the above is correct