Question

Given the following probability distribution, what is the expected value?

Outcome P(Outcome)
9 0.10
11 0.06
4 0.14
15 0.06
18 0.64

Expert Answer

1 Rating

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Probability

Related Probability Q&A

Find answers to questions asked by students like you.

Q: assume that Pr[A]=0.2Pr[A]=0.2 and Pr[B]=0.3Pr[B]=0.3.   If A⊂BA⊂B, then Pr[A∪B]= If A∩B=∅A∩B=∅, the...

A: The given probabilities are;

Q: The table d'hote (complete meal) at a french restaurant consists of a salad, enree, and a dessert. I...

A: There are 2 salad choices, 5 entrée choices, and 3 dessert choices.

Q: Computer chips from manufacturers A, B and C are "good" with probabilities of 99%, 95%, and 85%, res...

A: Let, A= Event that the chip is from manufacturer A. B= Event that the chip is from manufacturer B. C...

Q: 4.5.11 Assigned Media Question Help A professional basketball star who had a reputation for being a ...

A: b. It is given that a simulation was conducted 10 times to generate five results R1, R2, R3, R4 and ...

Q: Rework problem 3 from section 4.1 of your text involving the computation of probabilities for Bernou...

A: Click to see the answer

Q: 5. The overnight shipping business has skyrocketed in the last ten years. The single greatest predic...

A: Let A be the event that that the customer expressed medium satisfaction with the company and B be th...

Q: Could you please highlight the correct answer. and explain it

A: Requirements for a paired t-test: The samples must be paired sample and drawn randomly from normall...

Q: Assume that the store stocks 40 percent brand A, 40 percent brand B, and the rest are brand X. Assum...

A: Brand X is (100-40-40)=20% P(A)=0.40 , P(B)= 0.40 , P(X)= 0.20 Let, C= event that the number of page...

Q: 1.How many license plates consisting of 6 digits (0 to 9) have their digits in strictly increasing o...

A: Given that, How many license plates consisting of 6 digits (0 to 9) have their digits in strictly in...

Q: An experiment consists of flipping a weighted coin with Pr[H]=0.8Pr[H]=0.8. The experiment ends when...

A: It is given that the probability of getting a head is 0.8. The coin is flipped at most two times. L...

Q: you are going to  buy some calves. What should a healthy weight be? let  x be the age of the calf (i...

A: Step-by-step procedure to run the regression analysis using Excel: In Excel sheet, enter X in one c...

Q: A mail-order computer business has six telephone lines. Let X denote the number of lines in use at a...

A: Click to see the answer

Q: With one method of a procedure called acceptance sampling, a sample of items is randomly selected wi...

A: Let X= number of defectives  To accept the entire batch X has to be 0. probability of getting a defe...

Q: A truck contains 6 blue balloons, 6 red balloons and 8 green balloons. In how many ways can 6 balloo...

A: a) At least 4 red balloons means 4 or 5 or 6 red balloons can escape.  So we have to select first 4 ...

Q: the following observations are lifetimes (days) subsequent to diagnosis for individuals suffering fr...

A: From the given information,  Sample data: {115, 181, 255, 418, 441, 461, 516, 739, 743, 789, 807, 86...

Q: Suppose for this problem that Pr[E]=2/3 and Pr[F]=2/3. Just as in the book, Pr[(E∪F)′]=0. (1) What i...

A: (1) According to the provided information, Therefore, 

Q: A single die is rolled twice. The set of 36 equally likely outcomes is {(1,1),(1,2),(1,3),(1,4),(1,5...

A: The sum can be greater than 9 if sum=10,11,12 Sum of two numbers greater than 9 has the outcome: (4,...

Q: A student has 10 tickets to the show but she has 20 friends who want to see the show. Find the numbe...

A: She has to choose a group of 10 people from a group of 20 people.  Here the arrangement does not mat...

Q: This is about the professor who sometimes forgets to bring her briefcase to the office, assume that,...

A: Probability of forgetting = 1/8 X= number of days she forgets Total number of trials = 5    

Q: What are the criteria and steps needed to take to asses the degree in which an independent variable ...

A: The degree in which an independent variable causes changes observed in the dependent variable is the...

Q: On the island of foo, the natives use a counting system based on colored pebbles. In this system A r...

A: Click to see the answer

Q: Could you please highlight the correct answer. and explain it

A: For baby dolphin group,

Q: Problem 4. Messages arrive at a computer at an average rate of 25 messages per second. The number of...

A: a. The probability that no message arrive in 1 second is, Thus, the probability that no message arr...

Q: involving the sum of the numbers showing on two fair dice. What is the probability that exactly one ...

A: a) Sum of the numbers = 8, one side = 5, so another side = 8-5=3 3 and 5 can come in 2 ways. (3,5) ,...

Q: Find the complement of the set given that  U = {x | x I and −3 ≤ x ≤ 7}. (Enter your answers as a co...

A: First we write U in roster form.  

Q: A survey of 300 students in middle school yielded the following information: 100 like to go to the m...

A: Givent that H: like to hike and M: like the movies We will make Venn diagram 40 like to go to the mo...

Q: A certain virus infects one in every 200 people. A test used to detect the virus in a person is posi...

A: Given that, P(B|A)=90%=0.90 P(B|A')=8%=0.08 P(A)=1/200=0.005 P(A')=0.995  

Q: A card game uses a special deck where each card has a number and a color. The numbers range from 1 t...

A: There are numbers range from 1 to 12. So total of 12 numbers. The colors are red, orange, yellow, gr...

Q: A and B are independent events. If Pr[A]=0.3 and Pr[B]=0.7, what is Pr[A∩B′]?

A: From the provided information,

Q: Brandybuck Insurance Company (BIC) is deciding whether to insure the lives of those leading a quest ...

A: Click to see the answer

Q: For this problem, assume that the committee contains 10 men and 8 women and that three are selected ...

A: Given that, A committee consists of 10 men and 8 women Three members are selected at random for a su...

Q: Rework problem 22 from section 4.3 of your text, involving a carnival fishpond. Assume that the pond...

A: Expected value: The expected value of a random variable is the sum of the possible values that the r...

Q: I have the answer written as .7025 but I don't know how to get to it?

A: (20)   The percentage of individuals over age 50 suffer from arthritis is 10%. The percentage of ind...

Q: Q 4

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: The time (in minutes) a customer must wait in line at a bank is a continuous random variable with pr...

A: Condition for Median: Consider,  

Q: A slot machine has 3 dials. Each dial has 30 positions, one of which is "Jackpot". To win the jackpo...

A: Given that each dial has 30 positions, one of which is "Jackpot" So, the probability of getting the ...

Q: 1a,b, and c

A: a) It is given that the mean is 38,500 and the standard deviation is 2,500. The samples size is 60.

Q: How do I do this problem? What is the formula?

A: From the given information, the IQ scores of adults are normally distributed with a mean 100 and sta...

Q: Assume that the golfer makes 65 percent of putts when they are less than 10 feet and 35 percent of p...

A: Click to see the answer

Q: Only question 2a,b,c, and d.

A: Click to see the answer

Q: At the time of her grandson's birth, a grandmother deposits $13,000 in an account that pays 3.5% com...

A: a) Grandmother deposits (P) is $13,000. Interest rate is, 3.5%. That is r = 3.5/100 = 0.035. Number ...

Q: Suppose a certain combination lock requires three selections of numbers, each from 1 through 20. (a...

A: From 1 to 20 there are 20 numbers.  The numbers in the combination of lock may repeat.  The first nu...

Q: Sociologists say that 90% of married women claim that their husband's mother is the biggest bone of ...

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for you...

Q: The probability of being chosen in a simple random sample of size n from a population of size N is

A: We can pick a sample of size n from a population of size N in NCn ways.  When a particular element h...

Q: A loan officer knows that 50% of loan applicants in their 20s have bad credit, 40% of loan applicant...

A: At least 40 years old means age 40 or greater. 30% of loan applicants are in their 20s, 50% are in t...

Q: Required information During a recent drought, a water utility in a certain town sampled 100 resident...

A: Consider X be the number of success, that is, water consumptions in n independent Bernoulli trials w...

Q: A computer gaming company employs 10 programmers, 6 graphics specialists, and 3 creative designers. ...

A: Since in a group arrangement does not matter so we will use combination method to solve the problem....

Q: A computer gaming company employs 10 programmers, 6 graphics specialists, and 3 creative designers. ...

A: 4 programmers can be chosen from a group of 10 programmers in 10C4 ways. 2 graphics specialists can ...

Q: A radioactive mass emits particles according to a Poisson process. The probability that no particles...

A: Click to see the answer

Q: Four people must travel from one side of a bridge to the other. There is one flashlight among them. ...

A: The fastest people should go first.  So 3 and 5 go to the other side first with the flashlight. Then...