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Expected Value
Page 7
Questions (664)
Ten thousand raffle tickets are sold. 1 first prize of $1800, 3 second prizes of $600 each, and 9 third
prizes of $200 each are
1 answer
asked by
lawerance
1,042 views
If you roll this six sided number cube 36 times, how many times would you expect to roll the number one based on Jennifer's
2 answers
asked by
Jona
1,029 views
During a game, a balanced die is rolled. A player receives $22 when an even number is rolled, and loses $12 when an odd number
2 answers
asked by
Ann
1,016 views
One thousand raffle tickets are sold for $4.00 each. One grand prize of $800 and two consolation prizes of $100 each will be
3 answers
asked by
Jen
984 views
In a multiple-choice test, each question has five options. Students will get 5 points for each correct answer; lose 2 point for
3 answers
asked by
Jen
1,020 views
A scientist samples a deer population and finds 200 deer in an area of 10 square miles. On average, how many deer can the
1 answer
asked by
SKEYEYE
44 views
A family consists of ten children. Assuming that the sexes are equally probable,
find the expected number of boys in the family.
4 answers
asked by
Megan
988 views
Two dice are rolled and two fair coins are tossed. Let X be the sum of the number of spots that show on the top faces of the
2 answers
asked by
mike
950 views
The home states of a certain group of people are distributed as follows: 54 percent are from MISSOURI, 27 percent are from
2 answers
asked by
Mal
960 views
Please explain this to me because im really stumped here!!: The probability of winning a game is 20%. If you play 20 times, how
31 answers
asked by
Myah
945 views
Suppose you buy 1 ticket for $1 out of a lottery of 1,000 tickets where the price for the one winning ticket is to be $500. What
2 answers
asked by
kevin
1,022 views
It is estimated that are 21 deaths for every 10 million people who use airplanes. A company that sells flight insurance provides
2 answers
asked by
Josh
883 views
if a die rolled 30 times, what is the expected value that a 5 will appear. Is 5, right?
2 answers
asked by
constance
863 views
Two coins are taken at random (without replacement) from a bag containing 7 nickels, 5 dimes, and 6 quarters. Let X denote the
2 answers
asked by
Cecylia
876 views
There are 7 green cas. Predict the number of of green cars you would expect to see if there were 125 cars in the parking lot.
3 answers
asked by
DeeBie
855 views
According to a publisher's records, 20% of the books published break even, 30% lose $1000, 25% lose $10,000, and 25% earn
2 answers
asked by
Liz
860 views
1000 raffle tickets are sold and the winner is chosen at random there is only one prize $500 in cash you buy one ticket(a) what
4 answers
asked by
Doris
1,387 views
A small software company bids on two contracts. It anticipates a profit of $60,000 if it gets the larger contract and $25,000 if
2 answers
asked by
Nick
863 views
A raffle sells 100 tickets at $2 apiece. There is one $500 prize, five $100 prizes, and ten $50 prizes.
What is the expected
2 answers
asked by
Tiffany Wallace
855 views
A department store is running a promo one Saturday by giving out coupons for $10 of free merchandise. However, one-third of
1 answer
asked by
Leslie
859 views
There is a $2 raffle with a first prize of $10000, a second prize of $500, and a 3rd prize of $100. If 1000 tickets are sold
3 answers
asked by
Patty
863 views
a) Find the expected value of 8 minus the random variable X.
b) Find the expected value of the product (X minus 3) multiplied by
1 answer
asked by
Ces
176 views
Find the expected value, ì, for the sum of two fair dice. The probability distribution for the sum of two dice is given in the
2 answers
asked by
Anonymous
818 views
A player pays a $1 to play a game. With probability 0.001 the player wins $900, with probability 0.005 the players wins $10.
2 answers
asked by
ina
838 views
In a sample of 78 widgets, 2 were defective. How many defective widgets would you expect in a sample of 468 widgets?
3 answers
asked by
John
818 views
A game consists of you rolling one fair 6-sided die and observing the number that appears uppermost. If you roll a 2 or a 4,
2 answers
asked by
Anonymous
823 views
A bag holds 2 yellow, 1 green, and 2 red marbles. If you were to draw a marble from the bag 150 times, and replace it after each
3 answers
asked by
Vince
1,116 views
Find the expected value, u, for the sum of two fair dice. The probability distribution for the sum of two dice is given in the
1 answer
asked by
Anonymous
793 views
Numbers is a game where you bet $1 on any three-digit number from 000 to 999. If your number
comes up, you get $600.00, otherwise
2 answers
asked by
ann
780 views
Two six-sided dice are rolled. If the sum of the dots showing is odd, we get $16; otherwise, we lose $27. What is the expected
2 answers
asked by
valeria
767 views
A token is placed on the corner square of a 3×3 chess board. The token is moved either up, down, left, or right, with equal
2 answers
asked by
hrdcvrdcv
782 views
a contractor is considering a sale that promises a profit of $20,000 with a probability of 0.7 or a loss (due to bad weather,
2 answers
asked by
A
780 views
You Buy a lottery ticket to a lottery that cost $10 per ticket. There only 100 tickets available to be sold in the lottery. In
1 answer
asked by
Javier
773 views
In a multiple-choice test, each question has five options. Students will get 5 points for each correct answer; lose 2 point for
3 answers
asked by
Jen
778 views
If a basketball player has a shooting percentage of 60% , find the probability that the player will make at least 2 of her next
2 answers
asked by
Hannah Jorgensen
756 views
five hundred raffle tickets are sold for $2 each. one prize of $400 is to be awarded. raul purchases one ticket. what is his
2 answers
asked by
brittany
764 views
suppose a local symphony decides to raise money by raffling a microwave oven worth $400, a diner for two worth $80, and 2 books
2 answers
asked by
mariely
755 views
the probability of winning a game is 25% . How many times should you expect to win if you play 40 times
2 answers
asked by
Someone
765 views
Suppose you buy 1 ticket for $1 out of a lottery of 1,000 tickets where the price for the one winning ticket is to be $500. What
2 answers
asked by
george
756 views
Suppose you buy a ticket for a raffle. The ticket price is $5 and the price is worth $200. If 100 tickets were sold. What is the
2 answers
asked by
Fred
743 views
In new jersey's pick 4 lottery game, you pay 50 cents to select a sequence of four digits, such as 1332. if you select the same
2 answers
asked by
bibi
734 views
Lottery Prizes A lottery offers one prize, two prizes, three prizes, and five prizes. One thousand tickets are sold at each.
1 answer
asked by
Walter Rascon
767 views
1. Use the following scenario to answer questions 3-5. In archery class, Jocelyn missed the target 5 times in 40 shots. in her
5 answers
asked by
kaydence
726 views
Mamma temte bakes six pies a day that cost $2. on 15% of the days she sells 3 pies, on 30% of the days she sells 4. On 55% of
2 answers
asked by
Anonymous
692 views
Expected value If on a $1 bet, Paul Goldstein's expected value is 0.30, what is Paul's expected value on a $5
bet. I got 1.50 but
2 answers
asked by
angela
694 views
A gambler plays a game of chance in which he has 60% chance of winning. If he wins, he collects N1,800 but if he loses he pays
2 answers
asked by
Bobrisky
676 views
in a shipment of 7 items there are three defective items. at random 4 items are selected what is the expected number of
2 answers
asked by
arun
695 views
Suppose you play a game in which two fair standard dice are rolled. If the numbers showing on the dice are different, you lose
2 answers
asked by
Hannah
696 views
a card game goes like this: you draw a card from a 52 card deck. If it is a face card jack queen or king you win 5 dollars;
2 answers
asked by
suzanne
684 views
Volunteers working to raise funds for a new community library sold 1000 raffle tickets at $10 each. Tickets are to be randomly
4 answers
asked by
James
683 views
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Parent Categories (32)
Basic Probability
Central Limit Theorem
Chance Experiment
Coin flipping
Combinatorics
Conditional probability
Consumer behavior
Counting
Counting and Probability
Counting methods
Dice
Experimental Probability
Finance
Geometric Distribution, Binomial Distribution
Independent Events
Linear Regression
Lottery
Probability
Probability and Random Variables
Probability and Statistics
Probability Calculations
Probability Distribution
Probability Distribution Tables
Probability distributions
Probability of selecting a specific card
Probability of selection
Probability Theory
Random Experiment
Random Variables
Random Variables and Expected Values
Statistics
Sweepstakes