Question
Probability Scores
0.05 0
0.4 2
0.25 3
0.05 7
0.15 9
0.1 14



Find the expected value of the above random variable.


I need help

Expert Answer

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

Random Processes

Related Probability Q&A

Find answers to questions asked by students like you.

Q: Suppose an elevator is the maximum capacity of 16 passengers with the total weight up to 2500 pounds...

A: Click to see the answer

Q: A survey asked 816 college freshmen whether they had been to a movie or eaten in a restaurant during...

A: Let M be the event that freshmen went to a movie and R be the event that freshmen went to a restaura...

Q: 1)a) How many 3 digits passcodes are there if first digit must be a 1 or 2 ?   b) How many 3 digits ...

A: The possible number for passcode is as follows: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 a) if the first digit i...

Q: A street magician showed a trick where he picked one card froma standard deck. Determine what the pr...

A: The total cards in a standard deck are 52. The probability that the card will be a black seven card ...

Q: A gasoline tank for a certain model car is designed to hold 15.6 gallons of gas. Suppose that the ac...

A: Let X be the gas tank of randomly selected car Given Data: mean=15.6 standard deviation=0.3 variance...

Q: Let X denote the voltage at the output of a microphone, and suppose that X has a uniform distributio...

A: Given, Y=X if X≤0.50.5 if X>0.5-0.5 if X<-0.5 a) Here, the random variable Y is a continuous r...

Q: Suppose customers arrive to a 7–11 convenience store according to a Poisson process with rate 10 per...

A: Given, the average rate of customers arrival is λ=10. Since, the process is Poisson, the pdf isfx=PX...

Q: Question 1      The following table summarizes the number of students at Kiddies Headstart Preschool...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Let S={1,2,3,4} be a sample space with P(x)=kx where x is a member of {1,3}, and P(x)=k(x−1) where x...

A: Given Data: *Given sample space is: S=1,2,3,4 The given expression for the probability, when x=1,3 i...

Q: A student is trying to estimate how many hours (rounded to the nearest hour) an instructor might spe...

A: We know that the total probability is always 1. So, the blank space is = 1 - (0.32+0.15+0.27+0.14+0....

Q: The weights for players in the National Football League (NFL) have a right skewed distributed with a...

A: Solution: Given information Mean =μ= 245 poundsStandard deviations= σ=20 Pounds The distribution is ...

Q: For the given Problem, suppose that the probability of concluding that the process is out of control...

A: Answer: From the above information  The given values are  ∑i=1100Xi =97500 ∑j=120Rj = 1042 sample si...

Q: Please need help to calculate attached questions in excel formula if possible Thanks

A: 1.  The point estimate for all tune-up parts is sample mean, To find sample mean in Excel, type =AVE...

Q: Jolene is playing cards with her bestie when she draws a cardfrom a pack of 35 cards numbered from 1...

A: A pack of cards numbered from 1 to 35. The number that is a square from 1 to 35 are 1, 4, 9, 16 and ...

Q: Here is a table showing all  52  cards in a standard deck.   Face cards Color Suit Ace Two T...

A: The probability that the card drawn is a club can be calculated as:  

Q: In a lottery, 6 different numbers are chosen from 1 to 44. How many different lottery tickets are th...

A: Combinations are a way to calculate the total outcomes of an event where order of the outcomes does ...

Q: Suppose that the random variable xx, shown below, represents the number times . P(x)P(x) represents ...

A: Part A The probability that a randomly selected person has received four tickets in a three-year per...

Q: You write a code over and over, and each time there is probability p that it gets accepted, independ...

A: Click to see the answer

Q: if an urn has 5 white balls, 10 red balls, and 6 green balls, what is the probability that 4 randoml...

A: Combination: According to the combination rule, if r distinct items are to be chosen from n items wi...

Q: A cast for Hamlet still need to fill 6 rolls. Two of the roles are reserved reserved for women and t...

A: (a). Find the probability that a cast contains exactly 3 women: It is given that, a cast for Hamlet ...

Q: The following game is played in a particular carnival tent. You pay $1 to draw blindly 3 balls from ...

A: Here, three balls are drawn from the box without replacement which contains total 10 balls from whic...

Q: 3. A 3-digit number is form from the numbers 1, 2, 3, 4, 5 without replacement. Find the probability...

A: Given : 3-digit number is form from the numbers 1,2,3,4,5 without replacement. then, the total numbe...

Q: For this problem, assume the bag contains 11 basketballs, 5 of which have defective valves. You choo...

A: Given, The bag contains 11 basketball out of which 5 have defective valves. Therefore, the probabili...

Q: 4. Determine whether the following statement is true or false. total numbeg problems involving proba...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: It is determined that 62% percent of Grade 12s attend school in a particular urban school district. ...

A: Given : n = 500 p = 0.62 q = 1 - p  q = 1-0.62 q = 0.38 Here n×p and n×q is greater than 5. hence we...

Q: A pair of dice is rolled 3 times. What is the probability that a sum of 7 on the 2 dice will occur a...

A: Click to see the answer

Q: Question 6

A: As per bartleby guidelines only first three subparts are to be solved. Please upload other parts sep...

Q: Suppose it is known that in a certain large human population cranial length is approximately normall...

A: Click to see the answer

Q: You roll a TWELVE sided die. What is the probability that the value of the roll will be two?

A: When a 12 sided die is rolled then there are 12 possible outcomes. [any number from 1-12] If the val...

Q: Use the formula for the probability of the complement of an event. A single card is drawn from a dec...

A: We first find the probability of drawing 6. There are four 6s in a deck of cards And there are total...

Q: The lifetime of a bulb is modeled as a Poisson variable. You have two bulbs types A and B with expec...

A: Solution:  Poisson distribution: A random variable X is said to have a poisson distribution with a p...

Q: A 8 person committee consist of 5 women, including Margaret, and 3 men, including Anthony. If a subc...

A: a) Given that there are 5 women and 3 men.  We can pick 1 man in 3C1 ways and 2 women in 5C2 ways So...

Q: The diameters of pencils produced by a certain machine are normally distributed with a mean 0.30 inc...

A: Solution: Let X be the diameter of pencil. From the given information, X follows normal distribution...

Q: Draw a tree diagram to illustrate the sample space for rolling a six sided die and then rolling a 4 ...

A:   1)  Total number of outcomes = 6*4  Total number of outcomes = 24    

Q: If you are only dealt 4 cards froma shuffled deck of 52 cards, find the probability that all 4 cards...

A: Click to see the answer

Q: Referring to Table 4-1, what proportion of accidents involved alcohol and a single vehicle? O 50/400...

A: Question 17: The probability formula is, Probability=Number of favourable outcomesTotal outcomes Fro...

Q: normal distribution has µ=80 standard deviation of 10. what is probability of randomly selecting a s...

A: Given:  Calculate the corresponding Z score as follows: The probability of randomly selecting a sc...

Q: On average, a telemarketer makes a sale with probability of 0.2. Assuming that the results from one ...

A: Click to see the answer

Q: In a box of 30 chocolates, there are 5 chocolate covered cherries, 10 are filled with caramel, 15 ar...

A: Since I eat the first piece, so this problem is using without replacement.  I can pick any 2 pieces ...

Q: For this problem, assume that the numbers 1 through 3 are equally likely, as are the numbers 4 throu...

A: Let the probability for getting 1,2,3,4,5,6 be w1, w2, w3 , w4 , w5 , w6 respectively on a weighted ...

Q: According to a published study, 1 in every 9 men has been involved in a minor traffic accident. Supp...

A: Given: Sample size (n) = 25 Probability of minor accident =19

Q: A motorcycie drives from Morayta to Lacson and back using the same course everyday. There are four s...

A: Click to see the answer

Q: What is the probability of a student chosen at random liking wizards of Waverly place and Suite life...

A: Given: Number of students liking Waverly place and Suite of Zach and Cody only = 313 Number of stude...