Exercises using Probability Distributions

Please select the appropriate answer for all 5 questions and then click the submit exam for grading button at the end of the page.

Question 1. What is the probability of success if "p" is the probability
of failure?
(a) 1+p
(b) 1-p
(c) 1/p
(d) p
Question 2. What is the probability of finding 3 HEADS when a fair coin is tossed 3 times?
(a) 1/8
(b) 1/4
(c) 1/2
(d) 1
Question 3. What is the MEAN of a normal distribution approximated by if a fair coin is tossed 500 times and the probability of finding a HEAD is 1/2?
(a) 1000
(b) 500
(c) 250
(d) 50
Question 4. What is the probability of finding 2 TAILS and 1 HEAD when a fair coin is tossed 3 times?
(a) 1/8
(b) 2/8
(c) 3/8
(d) 1/2
Question 5. Given a UNIFORM DISTRIBUTION; what is the MEAN if a = 10 and b = 20 ?
(a) 5
(b) 10
(c) 15
(d) 20