5,401 Answered Questions for the topic probability

Probability Math Statistics

10/13/20

How do I find the value that is one standard deviation below the mean?

The following data are the distances between a sample of 20 retail stores and a large distribution center. The distances are in miles.29; 30; 37; 40; 58; 67; 68; 69; 76; 81; 84; 95; 96; 96; 99;... more
Probability

10/13/20

John stands in front of a sugary soft‐drink vending machine.

John stands in front of a sugary soft‐drink vending machine. This machine randomlydispenses one of four different flavored colas. The machine contains exactly two cans of eachflavor. Find the... more
Probability Statistics

10/12/20

what is the probability?

A radar unit is used to measure the speed of cars. Records show that the measures of speed are normally distributed with a mean of 95 km/hr and a standard deviation of 14km/hr. The probability that... more
Probability Statistics

10/12/20

What is the probability of getting delivered.

food delivery service in america has mean delivery time of 55 mins with a standard deviation of 20mins. Assuming that the distribution is normally distributed, then the probability that the food... more
Probability Math Statistics

10/12/20

How much will expect to gain/lose?

Ace's Pizza delivers several types of pizza, which is sold for 499 php and cost 300 php to make. The pizza shop has a policy that no charge will be asked if the delivery takes longer than half an... more
Probability Math Maths Mathematics

10/12/20

Direct reasoning and indirect reasoning in math-2 alberta curriculum

A standard deck of 52 cards consists of 4 suits (hearts, clubs, diamonds and spades). If a student deals 3 cards from standard deck, determine the probability to the nearest hundredth, that at... more
Probability

10/11/20

Not sure how to set up this problem

Wonder Widgets Inc produces Midget Widgets (MW).. Their data shows that 2% of the output is defective. A sample of 25 MWs is taken. (a) What is the probability that exactly two of this sample are... more
Probability Statistics

10/11/20

Probability game

The probability of winning a game is 7/15. Determine the probability, expressed as afraction, of winning exactly 3 games if 5 games are played
Probability Statistics

10/11/20

Probability, multiple choice

Jean guesses on all 7 questions on her multiple choice quiz. Find the probability if each question has 4 choices.P(exactly 6 correct)P(at most 2 correct)
Probability

10/11/20

statistics and probability

A survey conducted using students from UCC to determine the average travel time to UCC in preparation for the construction of a new shuttle bus terminal to ease pressure on students revealed a mean... more
Probability Statistics

10/11/20

Probability, studies

The probability that Jon studies and passes his math test is 13/16. If the probability that Jon studies is 19/20, find the probability that Jon passes his test, given that he has studied
Probability Statistics

10/11/20

Probability of birds

Three birds are randomly removed from a bird cage that contains a canary, a parrot, a robin, a cardinal, a blue jay, a hummingbird, and a sparrow. Find P(canary, given parrot)
Probability Statistics

10/11/20

Probability, number cubes

Two number cubes are tossed, find the probability only one shows a 2
Probability Statistics

10/11/20

Probability of coins

There are 6 pennies, 4 nickels and 3 dimes in a wallet. Three coins are drawn at random without replacement.What is the probability 3 are pennies?What is the probability at least one is a penny?
Probability Math

10/10/20

Determine the probability he will buy an ice cream on Wednesday.

When walking home from school during the summer months, Harold buys either an ice-cream or a drink from the corner shop. If Harold bought an ice-cream the previous day, there is a 30% chance that... more
Probability Statistics

10/10/20

If n(A) = 100 and n(A∩B) = 40, what is n(A∩B′)?

This is the entire question.. no information on universe or n(B)
Probability Math Finite Math

10/10/20

A box contains 5 red and 5 green balls. A ball is selected at random and its color is noted.

If this ball is red, it is replaced; if it is green, it is not replaced. Then, a second ball is drawn and its color is noted. Draw a tree and find the probability that: (a) the second ball is... more
Probability Math Finite Math

10/09/20

A pair of fair dice is rolled and the numbers noted. What is the probability that the sum is 8 given that at least one die shows a 3?

I have tried to get this question right for days. I honestly hate probabilities but anyway. Can someone explain to me how to solve this? Thanks a bunch!
Probability Math

10/08/20

I need help with this math problem.

A deli has a lunch special which consists of a sandwich, soup, salad, and drink for $8.99. They offer the following choices: Sandwich--chicken salad, tuna, and roast beef; Soup--chicken noodle,... more
Probability

10/08/20

Probability on committee making

A committee of 5 people is to be formed randomly from a group of 10 women and 5 men, what is the probability that the committee has at least 2 men?
Probability

10/08/20

Probability (Mutually Exclusive and Independence)

Events a, b, and c.a and b are mutually exclusive.a and c are independent. P(a), P(b), P(aUc), P(bUc) are given. How do I find P(c)?
Probability Statistics

10/07/20

what is the expect profit?

A game is played in a way that you draw three cards from a standard deck of 52 cards. If all the cards are queens, then you win 100,000 pesos. Otherwise, you pay 500 pesos. If you play this game... more

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