Part One - Data Table
The theoretical probability of rolling a fair six-sided die is
1/6 for any specific single outcome, such as rolling a one. You
want to test the theoretical probability by running an
experiment.
In this experiment, you need to roll a six-sided die 25 times.
Record the outcome of each die roll. Create a discrete probability
distribution using your outcomes as the probability. For example,
if you rolled 4 fives out of your 25 total rolls, your probability
would be 4/25.
x - 1 - 2 - 3 - 4 - 5 - 6
P(x)
Part Two - Discrete Probability
Distribution
After filling in the table above with your experimental
probability, answer the following questions. Show all work for full
credit. Calculations should be performed in Excel while answers
including an explanation of steps using proper terminology are
provided in a separate document.
1. What is the expected outcome for rolling a six-sided die
using the discrete probability distribution table above?
2. What is the probability of rolling an even number according
to the discrete probability distribution table above?
How does this compare to the theoretical probability of
0.5?
Explain why you think there is a difference between the
theoretical probability and the experimental probability you
found.
3. Create a binomial probability distribution based on the
discrete probability distribution table above where a success is
rolling an even number. Answer the following questions:
How do you know this is a Binomial Probability Distribution?
Explain by showing how this example fits all four properties of a
Binomial Probability Distribution.
Define n,p,q.
What is the probability that you will roll exactly 12 even
numbers?
What is the probability that you will roll at least 12 even
numbers?
Find the expected number of even numbers that you will
roll.
Part Three - Continuous Probability
Distribution
Dice are a common tool used in several board games. One board
game which utilizes two dice is Monopoly. While the outcomes of
rolling two dice in this game would be a discrete random variable,
we are interested in looking at a continuous random variable
associated with Monopoly and its respective probability.
The time it takes to finish a game of Monopoly is normally
distributed with a mean of 120 minutes and a standard deviation of
30 minutes. Using this premise, answer the following questions.
Show all work for full credit. Calculations should be performed in
Excel while answers including an explanation of steps using proper
terminology are provided in a separate document.
Explain why this is a continuous probability distribution
instead of a discrete probability distribution.
What is the probability that a game lasts less than 45
minutes?
What is the probability that a game lasts more than 160
minutes?
What is the z-score of a game that lasts exactly 105
minutes?