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Expected Value
Page 3
Questions (667)
An oil prospector will drill a succession of holes in a given area to find a productive well. The probability that he is
5 answers
asked by
Katy
5,143 views
We have two coins, A and B. For each toss of coin A, we obtain Heads with probability 1/2; for each toss of coin B, we obtain
4 answers
asked by
Muhammad
1,886 views
A bag contains 1 gold marbles, 9 silver marbles, and 26 black marbles. Someone offers to play this game: You randomly select one
4 answers
asked by
Josiah
3,111 views
The home states of a certain group of people are distributed as follows: 53 percent are from MISSOURI, 21 percent are from
6 answers
asked by
Lucy King
6,114 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
5 answers
asked by
Cassie
2,740 views
The random variable W can take on the values of 0, 1, 2, 3, or 4. The expected value of W is 2.8. Which of the following is the
7 answers
asked by
Anonymous
10,968 views
In a sample of 77 widgets, 6 were defective. How many defective widgets would you expect in a sample of 616 widgets?
4 answers
asked by
Lenore
3,185 views
True or False
According to the central limit theorem, the expected value for a sample mean becomes smaller, approaching zero, as
5 answers
asked by
Lyndyc
2,425 views
) If you rolled a die 48 times, how many times should you expect to roll a 3? *
4 answers
asked by
Anonymous
3,224 views
A company estimates that 0.2% of their products will fail after the original warranty period but within 2 years of the purchase,
4 answers
asked by
amy
5,186 views
Suppose you win $3 if you roll a sum of 2,3,4, or 5, you lose $15 if you roll a sum of 6,7, or 8, and you win $5 if you roll a
4 answers
asked by
marc
1,738 views
Assume that the pond contains 120 fish: 97 green, 22 yellow, and 1 red. A contestant pays $0.60 to randomly catch one fish and
4 answers
asked by
Steph
1,980 views
Suppose that you are offered the following "deal." You roll a six-sided die. If you roll a 6, you win $10. If you roll a 4 or 5,
4 answers
asked by
HelpAnon
1,153 views
the probability of having a winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect
23 answers
asked by
tobeymaguire
2,484 views
A bag contains 25 tickets each colored either red or yellow. Red tickets are worth $.50 and yellow tickets are $5.00. If the
4 answers
asked by
Anonymous
1,673 views
In a certain Math class, the probabilities have been empirically determined for various numbers of
absentees on any given day.
4 answers
asked by
Joan
1,449 views
From a group of 3 men and 4 women, a delegation of 2 is selected at random. What is the expected number of men in the
4 answers
asked by
HM
3,282 views
A spinner has 3 three sections, each with different point values and areas.
-The 1-point section is 2/3 the area of the spinner.
4 answers
asked by
Kaila
1,163 views
Let S={s1,s2,s3} be a sample space with probability distribution P given by P(s1)-0.2, P(s2)=0.3, P(s3)=0.5. Let f be a function
3 answers
asked by
Islam
542 views
An airline knows that, on average,
the probability that a passenger will not show up for a flight is 6%. If an airplane is fully
4 answers
asked by
Sid
1,890 views
The probability of a certain hockey player making a goal after hitting a slap shot is 1/5. How many successful slap shots would
6 answers
asked by
Anonymous
1,034 views
two construction contracts are to be randomly assigned to one or more of 3 firms- I,II,III. A firm may receive more than one
10 answers
asked by
Amelie
2,389 views
The probability of winning a game is 25%. How many times should you expect to win if you
play 40 times?
4 answers
asked by
Hippo
1,034 views
The probability of winning a game is 25%. How many times should you expect to win if you play 40 times?
a. 4 b. 10 **** c. 16 d.
5 answers
asked by
Vesphy
1,136 views
You have two decks of 26 cards. Each card in each of the two decks has a different letter of the alphabet on it. You pick at
3 answers
asked by
Basheer
565 views
Two six-sided dice are rolled. If the sum of the dots showing is odd, we get $10; otherwise, we lose $25. What is the expected
4 answers
asked by
brii
1,800 views
A regional manager visits local fast food franchises and evaluates the speed of the service. if the manager receives her meal
2 answers
asked by
Kiesh
648 views
Two teams have played each other 14 times. Team A won 9 games and team B won 5 games. Bob offers to bet $6 on team A winning
3 answers
asked by
Traci
714 views
Kyd and North are playing a game. Kyd selects one card from a standard 52-card deck. If Kyd selects a face card (Jack, Queen, or
4 answers
asked by
tatiana
4,760 views
Use the following statement to answer parts a) and b). One hundred raffle tickets are sold for $3 each. One prize is to be
3 answers
asked by
angie
1,068 views
The faces on a fair number cube are labelled 1, 2, 3, 4, 5 and 6. Steven rolls the number cube 48 times.How many times should
4 answers
asked by
Tifinia
1,805 views
A game show contestant is offered the option of receiving a computer system worth $2300 or accepting a chance to win either a
2 answers
asked by
Andrew
1,213 views
If you select a chip at random from a jar with 7 red, 2 green and 1 blue chip. If the chip you pick is red, you win $10,000, if
1 answer
asked by
PK
464 views
From a group of 5 women and 7
men, a delegation of 3 is selected. Find the expected number of women in the delegation. What is
3 answers
asked by
Louise Carpenter
463 views
The probability that a certain hockey team will win any given game is 0.3786 based on their 13 year win history of 393 wins out
3 answers
asked by
Anonymous
289 views
You are given 5 to 4 odds against tossing three heads with three coins, meaning you win $5 if you succeed and you lose
3 answers
asked by
tom
1,571 views
A school is holding a Fixed Raffle, where only a certain number of raffle tickets can be sold. The school sold 970 of these
2 answers
asked by
Brianna
481 views
A game is defined by the rules that the die is rolled and the player wins varying amounts depending on the number on the upper
4 answers
asked by
Anonymous
1,757 views
A game is played using one dice. If the dice is rolled and shows 1, the player wins $1; if it shows 2, the player wins $2; if it
4 answers
asked by
Ryan
1,989 views
A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 15000 tickets are
4 answers
asked by
HANDSON
2,819 views
A bag contains 8 white marbles and 2 black marbles. You pick out a marble, record its color, and put the marble back in the bag.
4 answers
asked by
Anonymous
1,747 views
Suppose we have a bag with 10 slips of paper in it. Eight of these have a 2 on them and the other two have a 4 on them.
What is
3 answers
asked by
Mr. Alexander
809 views
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will
3 answers
asked by
Mary Ann
592 views
For a particular population, a sample of n = 4 scores has an expected value of 10. For the same population, a sample of n = 25
4 answers
asked by
Lyndyc
2,687 views
Assume that a dart is randomly thrown at the dartboard shown here and strikes the board every time. The payoffs are listed on
3 answers
asked by
Mike
2,672 views
A baseball player reaches base 35% of the time. How many times can he expect to reach base in 850 at-bats?
4 answers
asked by
Jessica
896 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
3 answers
asked by
bibi
563 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
3 answers
asked by
mike
1,876 views
A game is played using one die. There is a$1 charge to play the game. If the die is rolled and shows a five, the player receives
4 answers
asked by
Todd
973 views
Somebody repeatedly roll a fair die. If it comes up 6 he instantly wins(and stop playing); if it comes up k, for any k between 1
2 answers
asked by
Alex
384 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