Exercise 8. McDonald's Happy Meals are child-sized burger meals that come with a toy. Assume that the toy is randomly chosen from among 5 options. I already have 2 toys. (a) What is the probability that my next happy meal comes with a toy that I don't already have? (b) What is the probability that I will have to buy 3 happy meals before I get a toy I don't already have? Explain briefly the probability distribution function that you use to answer this question. (c) What is the expected number of happy meals I will need to buy to get all 5 toys (Hint: you may assume it is the expected number I will need to buy to get a 3rd toy, plus the expected number I then need to buy to get the fourth toy, plus the expected number I need to buy to get the fifth toy).
Exercise 8. McDonald's Happy Meals are child-sized burger meals that come with a toy. Assume that the toy is randomly chosen from among 5 options. I already have 2 toys. (a) What is the probability that my next happy meal comes with a toy that I don't already have? (b) What is the probability that I will have to buy 3 happy meals before I get a toy I don't already have? Explain briefly the probability distribution function that you use to answer this question. (c) What is the expected number of happy meals I will need to buy to get all 5 toys (Hint: you may assume it is the expected number I will need to buy to get a 3rd toy, plus the expected number I then need to buy to get the fourth toy, plus the expected number I need to buy to get the fifth toy).
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON