MISS PROFESSOR

 DISCUSSION 3

Many situations, problems and life events involve probability. Please give an example of how probability was or is used in a real life scenario. 

Post your response in the discussion forum. Comment on at least two other students' posts by the date specified in the syllabus. Please provide the source and reference where the information was obtained. Use the library or educational resources (e.g. Text-books, journals, research papers, NO Wikipedia is allowed.)

  

Please show all of your work and not only the answer  ASSIGNMENT 3

Chapter 5- Hint combination or permutation rule

1. (5 points) In the Cash Now lottery game there are 10 finalist who submitted entry tickets, three grand prize winners will be drawn. The first prize is $1 million, the second prize of $100,000, and the third prize is $10,000. Determine the total number of different ways in which the winners can be drawn. ( Assume that the tickets are not replaces after they are drawn)

2. (5 points) During the Computer Daze special promotion, a customer purchasing a computer and printer is given a choice of 3 free software packages. There are 10 different software packages from which to select. How many different groups of software packages can be selected? 

Chapter 6 – Hint Binomial Probability Distribution

3. (10 points) A research term at Cornell University conducted a study showing that approximately 10% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions ( Source: Chances: Risk and Odds in Everyday Life, by James Burke). At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that

a) at least one tie is too tight?

b) More than two ties are too tight?

c) No tie is too tight?

d) At least 18 ties are not too tight?