Class in theory and probability chapter in expectation (weighted average)Please don't provide the solution from the solution manual or from slader.com. If you could provide details to your solution I will be greatful. In a class of 50 students, the number of students n; of each age i is shown in the following table:Age ini18192022432125If a student is to be selected at random from the class, what is the expected value of his age?

We first find the probability distribution of the given ages. To find the probabilities we divide…

In a class of 50 students, the number of students n; of each age i is shown in the following table: Age i ni 18 19 20 22 4 3 21 25 If a student is to be selected at random from the class, what is the expected value of his age?

In a class of 50 students, the number of students n; of each age i is shown in the following table: Age i ni 18 19 20 22 4 3 21 25 If a student is to be selected at random from the class, what is the expected value of his age?

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...

See similar textbooks

Related questions

Q: Please show all the steps The Massachusetts state lottery game, Cash WinFall, used to have a way…

A: GivenThe price of 1 lottery ticket =$2 The total numbers in the game =46 The number of ways of…

Q: ring Info Exit polling is a popular technique used to determine the outcome of an election prior to…

A: Given that n=500 , p=0.51 , q=1-p=1-0.51=0.49

Q: A foundation is holding a fund-raising campaign in a form of a raffle. A raffle ticket costs 120 php…

Q: Explain the difference of A and B being dependent or independent with examples please. Explain the…

A: Multiplication rule of probability If A and B be two Independent Events. Then P(A∩ B) = P(A) x P(B)…

Q: See photo of detailed question please.

Q: A bank receives on the average 4 bad cheques a day. What is the probability that it will receive a…

Q: Jim Cramer hosts CNBC’s “Mad Money” program. Mr. Cramer regularly makes suggestions about which…

A: Given information: Stock Buy Price Current Price/Sold Percent Gain/Loss Skyworks Solution 6.88…

Q: When finding median and the middle has two numbers instead of one, what do you do? Take the higher…

A: Median: It is the middle most value of the data set that divides the whole data into two equal parts…

Q: 7. A multiple choice exam has 3 choices for each question. A student has studied enough so that the…

A: given data multiple choice exam 3 choices of each questions availableevent : T : question get…

Q: You forget to study for the multiple choice exam in your next class. Suppose the test has 5…

A: It is an important part of statistics. It is widely used.

Q: Describe about the A common outcome signifies.

Q: If the probability that the Yankees will win a baseball game is 60%, find the probability that the…

A: The probability that Yankees will win a baseball game is 60%, that is PWinning=0.60.

Q: Engineering Statistics, i need solutions in 10 minutes please. MCQ/Find the probability of obtaining…

A: Given Data: S={ 1, 2, 3, 4, 5, 6} n(S)=6 Let A be the event of getting even number or number…

Q: A single number cube is rolled twice. PART A Determine the number of possible outcomes. Explain how…

A: Single number cube is rolled twice. In Cube 1 to 6 number plot in each side. In First roll suppose…

Q: Determine the number of possible outcomes. Explain how you know you have found all the possible…

A: Here die is rolled twice. On each die there are total 6 possible outcomes. Probability of getting…

Q: Part B. The absolute risk of getting diabetes in the UK if you are an obese adult is 63.4%. The…

A: Absolute risk of getting diabetes if you are an obese = 63.4% Absolute risk of getting diabetes if…

Q: Lebron James predicted he would have won 7 championships by his retirement. It is 2024 and he has…

A: Percent error is given by

Q: 36. Creatures on the planet Alvedian have three genders: Rub, Yam, and Bio. Every year, these…

A: Here we must note that the chance for Rub to become Yam(sweet potato) is the same as Yam to become…

Q: -1. Refer to the variable winning margin. What is the level of measurement? (Click to select) C-2.…

A: Level of measurement are used to denote the variable. There are four types of measurements, they are…

Q: AI Sa Netriix Argentina:. G google translate -. Registration - We... 5 IT-ATS | Canvas@. The Boston…

A: First we arrange the data in ascending order so it would be easy to count leaf.

Q: 27 The probability that a bachelor's degree recipient in 2006 majored in mathematics is 100 Cu Find…

A: Given that probability is 27/ 100 = 0.27 The odds of a bachelor's degree recipient in 2006 majoring…

Q: RN 20 sychology 30 35.3 21S22SACVA 31 42 53 Descriptive Statistics: Registered Nurses vs. Psychology…

A: There are 2 types of careers available Registered Nurses Psychology Summary Statistics…

Q: According to the World Atlas, the proportion of the world’s population has brown eyes is 79%. What…

A: The proportion of the world's population has brown eyes is the population proportionp=0.79

Q: You and 5 of your friends decide that you would enroll to the National Engineering University. But…

A: From the provided information, Sample size (n) = 6 Probability that one of you pass the exam (p) =…

Q: 32. Daffa plans to invite her eleven friends to have dinner at her house. Due to being busy, the…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

Q: Answer all and explain how it is solved. Show hand written solutions.

Q: the probability of the event of rain for the day is 84%, what are the odds in fivor of rain The odds…

A: Given : The probability of the event of rain for the day is 84%.

Q: Typed please and asap please provide a high quality solution give in minimum 2 steps solution and…

A: For a 4-anonymous table:If you have a 4-anonymous table, it means that each combination of values in…

Q: Cilantro tastes like soap to some people. This soap taste is inherited through the olfactory…

A: The probability of someone having the OR6A2 gene is 22%∴p=0.22Sample size,It is required to…

Q: Don is considering bringing a lawsuit against the Dummote Company. His lawyer estimates that there…

A: Given Data: The expected value E is called by multiplying the probability of an event occurring by…

Q: Please show complete solution and explain the answer. The probability of flipping two coins will…

A: We have given that, If two coins are tossed the the sample space (s) is, s = { HH, HT, TH, TT } =…

Q: Finding the probability of a range looks kinda tricky. How do I do it? Type your Answer DO

A: introduction From the above question we have to Finding the probability of a range looks kinda…

Q: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: Right (x) Left (y) d (x-y) d2 44 41 3 9 47 45 2 4 41 39 2 4 48 49 -1 1 41 39 2 4 47 43 4…

Q: A study at an amusement park found that, of 10,000 families at the park, 1630 had brought one child,…

A: Given:

Q: Describe the complement of the given event. 68% of subscribers to a fitness magazine are over the…

Q: You may want to create a table to help you with this problem. Consider a computer test to indicate…

A: According to the provided information, in a sample of 25 thousand people, 80% of the population…

Q: Joan and Cindy are on the same bowling league. The probability that Joan scores more than 150 is…

A: Given that: Probability that Joan scores more than 150 = 0.4 Probability that Cindy scores more than…

Q: 10 A charity institution will organize a mini outdoor concert for a cause. The estimated cost of the…

Q: Please do not give solution in image format thanku 10. On the roll of two dice you bet $3 that the…

A: On the roll of two dice you bet $3 that the sum is 7. If the sum is 7, you win $14 and your bet…

Q: Typed please

A: Step 1:13 reservations are accepted from this 11 reservations confirmed.The flight has 12 seat and…

Q: The probability that a visitor's first ride at a theme park will be the roundabout or the pirate…

A: Given,The probability that a visitor's first ride at a theme park will be the roundabout or the…

Q: This season, the probability that the Yankees will win a game is 0.6 and the probability that the…

Q: As a birthday gift, you are mailing a new personal digital assistant (PDA) to your cousin in Toledo.…

A: Answer:- Given, The PDA cost, X = $ 209. Probability of it will be lost or damaged in the mail, p =…

Q: There is a 95% chance of passing any exam. What is mean in number of attempts until third exam is…

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Class in theory and probability chapter in expectation (weighted average)

Please don't provide the solution from the solution manual or from slader.com. If you could provide details to your solution I will be greatful.

In a class of 50 students, the number of students n; of each age i is shown in the following table:
Age i
ni
18
19
20
22
4
3
21
25
If a student is to be selected at random from the class, what is the expected value of his age?

Video Video

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!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.

Similar questions

PROBABILITY UPVOTE WILL BE GIVEN. PLEASE WRITE THE COMPLETE SOLUTIONS. ANSWER IN 4 DECIMAL PLACES. BOX THE FINAL ANSWER. Determine the following:
Solve number 5 and explain
Hi please see attached. Thankyou!
You call a number off a fair 8-sided die. You then call a number off a fair 12-sided die. You roll both. What is the probability of correctly calling the 8-sided die or 12-sided die roll? I need help remembering the steps to the solution which I know is 0.1979
Please do not give solution in image format thanku
You draw two cards from this deck, one after the other, without replacement. What is the probability of drawing a blue card first, then a red card? SHOW COMPETE AND PROPER SOLUTION, PLEASE READ IT FIRST CAREFULLY. THANKS
How to solve?
At the regional track tournament the top three finishers in each race place themselves into the state competition. If there are 15 runners in a 1600 m run and I am one of them. What are the chances that I could place and get to go to state?
Please do not give solution in image format thanku
homework practice, please complete this question
Professor Ramos will participate in the lottery that will be played by 500 participants he buys a ticket for 5 dollars.the lucky randomly selected winner will get 100 dollars as a prize what would Ramos expected winnings or losses be. Show your calculations and interpret your results
Solve using Baye's Theorem. Show complete solution. Please don't solve if not Baye's Theorem. A large industrial firm uses 3 local motels to provide overnight accommodations for its clients. From past experience it is known that 20% of the clients are assigned rooms at the Ramada Inn, 50% at the Sheraton, and 30% at the Lakeview Motor Lodge. If the plumbing is faulty in 25% of the rooms at the Ramada Inn, in 35% of the rooms at the Sheraton, and in 40% of the rooms at the Lakeview Motor lodge, what is the probability that A. a client will be assigned a room with faulty plumbing? B. a person with a room having faulty plumbing was assigned accommodations at the Lakeview Motor Lodge? C. a person with a room having no faulty plumbing was assigned accommodations at the Lakeview Motor Lodge?