A cubic die is biased, so that for each integer n, 1 ≤n ≤6, the probability of the event {n} is p({n}) = 2p if n=3 or n=4 and p({n}) = p, otherwise. a) What is the expected number of times the die comes up 6, when it is rolled 32 times? b) What is the expected number of times the die must be rolled until the first 6 comes up?

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...
icon
Related questions
Question

A cubic die is biased, so that for each integer n, 1 ≤n ≤6,
the probability of the event {n} is p({n}) = 2p if n=3 or n=4 and
p({n}) = p, otherwise.
a) What is the expected number of times the die comes up 6,
when it is rolled 32 times?
b) What is the expected number of times the die must be rolled
until the first 6 comes up?

Expert Solution
Step 1

Probability homework question answer, step 1, image 1

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON