math 3
posted by kj .
Peter is playing a game where a tensided die is rolled. Four sides of the die have the number 10, three sides of the die have the number 5, two sides of the die have the number 25, and one side of the die has the number 27.
What is the expected value of a roll?

math 3 
Pendergast
4/10 chance of rolling 10
3/10 chance of rolling 5
2/10 chance of rolling 25
1/10 chance of rolling 27
Expected value is the sum of the outcomes multiplied by probabilities
= (4/10)(10) + (3/10)(5) + (2/10)(25) + (1/10)(27)
Respond to this Question
Similar Questions

MATH Prob.
A 6sided die is rolled. The sides contain the numbers 1,2,3,4,5,6. List the sample space of rolling one die. 
math
A 6sided die is rolled. The sides contain the numbers 1, 2, 3, 4, 5, 6. List the sample space of rolling one die. 9) _______ A) {6} B) {36} C) {1, 2, 3, 4, 5, 6} D) None of these 
mat
Marcus flips a coin and tosses a sixsided die with the sides numbered 1 through 6. What is the probability that he gets a head on the coin and a number divisible by 3 on the die 
math
Marcus flips a coin and tosses a sixsided die with the sides numbered 16. What is the probaility that he gets a head on the coin and a number divisible by 3 on the die? 
Statistics
You have a fair die. The die has a 2 on two sides, a 4 on two sides and a 6 on two sides. Note: the only possible outcomes for each roll are 2, 4 or 6. (a) Draw a tree diagram that shows the possible outcomes of rolling the die twice … 
math 3
Peter is playing a game where a tensided die is rolled. Four sides of the die have the number 10, three sides of the die have the number 5, two sides of the die have the number 25, and one side of the die has the number 27. What is … 
Statistics
This is a standard deviation contest. You have a six sided die with the numbers 1 to 6 written on the faces. a)In order to have the smallest possible standard deviation what number(s) would have to show up if you rolled the die five … 
probability
We have two fair threesided dice, indexed by i=1,2. Each die has sides labelled 1, 2, and 3. We roll the two dice independently, one roll for each die. For i=1,2, let the random variable Xi represent the result of the ith die, so … 
Algebra 2/statistics
On a fair 6sided die, each number has an equal probability p of being rolled. when a fair die is rolled n times, the most likely outcome (the mean) is that each number will be rolled NP times, with a standard deviation of sqrt NP(1P). … 
math
A red die and a green die have been rolled. (6 sided) What is the probability of the event?