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Probability & Statistics

11/03/17

Probability Curve

Scores on the SAT form a normal distribution with an average of 500 and a standard deviation of 100. Based on this information, what percent of scores fall above an SAT score of 520?

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Probability & Statistics

11/03/17

16. Fifteen people work in an office. 8 are women and 7 are men. The flu virus is coming. (a) In how many ways can the flu virus randomly select 9 workers out

hard time with this one

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Probability & Statistics

11/03/17

The mean reaction time of 1500 randomly selected students who took SHOVITALLTM anti- math anxiety medication was measured at 12 minutes, with a standard deviati

The mean reaction time of 1500 randomly selected students who took SHOVITALLTM anti- math anxiety medication was measured at 12 minutes, with a standard deviation of 2 minutes. Assuming a normal... more

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Probability & Statistics

11/03/17

9. Find the equation of the line passing through (3, 1) and (4, – 1): A. 5x–4y= 11 B. 2x+5y = 3 C. 2x+y = 7 D. 3x+4y = 8

need assistance with multiple ??

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Probability & Statistics

10/29/17

find the random variable x has a poisson distribution with mean u=6, find the probability that x=2

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Probability & Statistics Elementary Statistics

10/27/17

Question in description

Question Help A candy company that makes colored candies claims that 10% of the candies it produces are green and that bags are packed randomly. In a really large bag of candies, we found 12% of... more

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Probability & Statistics

10/25/17

Probability and Stats

There are 49 even numbers from 1 to 99. The mean of 48 of these numbers is 49 and 5/12. Which even number was not included in the calculating of this mean?

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Probability & Statistics

10/25/17

Probability and Stats

Two different whole numbers are randomly selected from the set {1,2,3,...,9}. What is the probability that their product is an even number?

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Probability & Statistics Math

10/25/17

In a certain truckload of apples 30% of the apples are rotten. if 12 are chosen at random, what is the probability that less than 3 of them are rotten?

I know how to do conditionals somewhat but this confuses me because i dont know the amount of apples.

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Probability & Statistics

10/23/17

find the probability of getting exactly 4 heads on 8 flips of a coin

I do not know how to figure this out

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Probability & Statistics

10/20/17

Two six-sided dice are rolled. What is the probability that one of the dice shows a 5 or the dice sum to 3?

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Probability & Statistics

10/17/17

Find the probability that an accident involves at least one car.

Probabilities of different types of vehicle-to-vehicle accidents are shown below: Accident Probability Car to Car 0.65 Car to Truck 0.17 Truck to Truck 0.18

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Probability & Statistics

10/17/17

suppose a jar contains 377 red marbles and 332 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red.

how marbles in the

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Probability & Statistics

10/16/17

Deck of Cards Probability Question

There are two decks of cards. Each deck has a red, a yellow, a blue, and a green card in it. If a card is drawn, from the first deck, and then a second card drawn from the second deck, what is the... more

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Probability & Statistics

10/15/17

A wheel has 1 red, 2 blue, 3 yellow, 4, green, and 5 purple spaces of equal area. What is the probability of spinning yellow and then spinning another yellow?

Would the answer be 0.2? Please help.

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Probability & Statistics

10/13/17

Raffles have 100 tickets for sale, and I buy 80, so probability winning is 80%. What is probability for win one of two raffles-obviously more than 80%, but how

probability of winning raffle

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Probability & Statistics

10/09/17

Please anwer the below.

If it snows on game day there is a 32% chance the Jets will win. If it does not snow on game day there is a 41% chance the jets will win. There is a 29% chance that it will snow on game day. a.... more

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Probability & Statistics

10/06/17

What is the probability of selecting a jury of two students and five faculty?

The grade appeal process at a university requires that a jury be structured by selecting seven individuals randomly from a pool of eleven students and seven faculty. (a) What is the probability of... more

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Probability & Statistics

10/05/17

I don't know how to do the question

The mean lifetime of a certain type of lightbulb produced by a manufacturing company is 200 months with a standard deviation of 30 months. Such a lightbulb will be guaranteed for 150 months by the... more

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Probability & Statistics Playing Cards

10/03/17

One card is selected from a standard deck of 52 playing cards. What is the probability that the card is either a spade or a four?

For the Praxis Core exam

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Probability & Statistics Math Probability Math Question

10/02/17

Forged Signaute or not Probability

A document is signed with an ElGamal signature. The probability that a signature is forged is (.1). Find the probability that at least one of the three Rob’s signatures is forged.

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Probability & Statistics Math Probability

10/02/17

Probability Randomly Selected Question

Usually, errors are found in 10% of lines of code written by software engineers at Error Free Code, Inc. What is the probability that in a randomly selected sample of 5 lines of code none of them... more

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Probability & Statistics Math Statistics Probability

09/28/17

If P(B)=0.4, P(A|B)=0.5, P(B′)=0.6, and P(A|B′)=0.7, what is P(B|A)?

Statistics probability problem. I could really use some help figuring out how to solve this.

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Probability & Statistics

09/28/17

Mason plays a game by flipping two fair coins. He wins the game if both coins land facing heads up. If Mason plays 200 times, how many times should he expect to

Mason plays a game by flipping two fair coins. He wins the game if both coins land facing heads up. If Mason plays 200 times, how many times should he expect to win

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Probability & Statistics

09/26/17

an unfair coin has probability of .4 landing heads. The coin is tossed three times. What is the probability that it lands heads at least once

I need help solving this problem

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Probability Curve

16. Fifteen people work in an office. 8 are women and 7 are men. The flu virus is coming. (a) In how many ways can the flu virus randomly select 9 workers out

The mean reaction time of 1500 randomly selected students who took SHOVITALLTM anti- math anxiety medication was measured at 12 minutes, with a standard deviati

9. Find the equation of the line passing through (3, 1) and (4, – 1): A. 5x–4y= 11 B. 2x+5y = 3 C. 2x+y = 7 D. 3x+4y = 8

find the random variable x has a poisson distribution with mean u=6, find the probability that x=2

Question in description

Probability and Stats

Probability and Stats

In a certain truckload of apples 30% of the apples are rotten. if 12 are chosen at random, what is the probability that less than 3 of them are rotten?

find the probability of getting exactly 4 heads on 8 flips of a coin

Two six-sided dice are rolled. What is the probability that one of the dice shows a 5 or the dice sum to 3?

Find the probability that an accident involves at least one car.

suppose a jar contains 377 red marbles and 332 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red.

Deck of Cards Probability Question

A wheel has 1 red, 2 blue, 3 yellow, 4, green, and 5 purple spaces of equal area. What is the probability of spinning yellow and then spinning another yellow?

Raffles have 100 tickets for sale, and I buy 80, so probability winning is 80%. What is probability for win one of two raffles-obviously more than 80%, but how

Please anwer the below.

What is the probability of selecting a jury of two students and five ​faculty?

I don't know how to do the question

One card is selected from a standard deck of 52 playing cards. What is the probability that the card is either a spade or a four?

Forged Signaute or not Probability

Probability Randomly Selected Question

If ​P(B)=0.4​, P(A|B)=0.5, P(B′​)=0.6, and​ P(A|B′)=0.7, what is P(B|A)?

Mason plays a game by flipping two fair coins. He wins the game if both coins land facing heads up. If Mason plays 200 times, how many times should he expect to

an unfair coin has probability of .4 landing heads. The coin is tossed three times. What is the probability that it lands heads at least once

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What is the probability of selecting a jury of two students and five faculty?

If P(B)=0.4, P(A|B)=0.5, P(B′)=0.6, and P(A|B′)=0.7, what is P(B|A)?