Newest probability Questions | Wyzant Ask An Expert

A continuous ransoms variable is normally distributed. The probability that a value in the distribution is greater than 54 is 0.4478. Find the probability that a value in the distribution is less... more

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Probability Math Sat Math Maths

03/06/21

Simple permutation math urgent help requested.

Determine how the letters of the word ‘Equation’ can be arranged by placing the consonants in odd places?(I know the answer 2880, I need to know how to do this type of maths, please show step by step) more

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Probability Math

03/06/21

if there is 176 people in an event and only 10 get chosen,what is the probability that i get chosen

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Probability

03/06/21

If you roll a PAIR of dice, what is P(<7, 2 dice)? Give your answer in decimal form.

Now that you have drawn the dice table, find the probability. These problems use some abbreviations: P(4, 2 dice) means what is the probability of getting a 4 when you roll two dice.

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Probability

03/05/21

Probability question

When we find conditional probabilities, do we need to check to see if they are mutually exclusive or if they are independent?

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Probability

03/05/21

Probability question

What do we mean when we say that the probability is a conditional probability?

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Probability

03/05/21

Marble Probability

Given that a box has 3 blue marbles, 2 red marbles, and 4 yellow marbles, use the probability formulas to answer the following questions. Reduce all fractions. Use / as the fraction bar and do not... more

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Probability

03/05/21

An urn contains 7 blue balls, 12 red balls, 6 green balls, and 14 yellow balls. You stick your hand in and pull out a ball without looking. What is the probability of selecting a red ball?

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Probability

03/05/21

Probability or ratio question

There are some counters in a box . Each counter is blue or red or green. There are twice as many blue counters as red counters and three times as many green counters as blue counters. One counter... more

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Probability

03/05/21

Probability or ratio question

There are some counters in a box . Each counter is blue or red or green. There are twice as many blue counters as red counters and three times as many green counters as blue counters. One counter... more

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Probability

03/05/21

HELPP probability marbles

Given that a box has 3 blue marbles, 2 red marbles, and 4 yellow marbles, use the probability formulas to answer the following questions. Reduce all fractions. Use / as the fraction bar and do not... more

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Probability

03/05/21

random sample of 1353 adult showed that 688 of them has stopped at least once on the internet. What is the probability that randomly selected adult has stopped on the internet

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Probability Ap Statistics

03/04/21

Cruise Ship Problem

The following data were obtained about 500 passengers on a cruise ship. 272 passengers brought a camera. 218 passengers brought a laptop computer. 196 passengers brought MP3 players. 51 passengers... more

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Probability

03/04/21

Answer and solution for this please. Thank you! A class has 8 boys and 15 girls. If three students are selected at a random from the class, what is the probability that they are all boys?

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Probability Math Statistics

03/03/21

Can someone help me with sampling distribution of the sample mean?

A population has mean 1,542 and standard deviation 246.a) Find the mean and standard deviation of Xbar for samples of size 100.b)Find the probability that the mean of a sample of size 100 will be... more

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Probability Math Statistics

03/03/21

Trouble with urn question

The urn holds 300 blue & 700 green balls. Select 10 balls with replacement,there are a total of 1k balls. This is a combination question I'm sure, but I am getting a big number when trying to... more

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Probability

03/02/21

A bag contains five black, three red, and eight white balls. If three balls are drawn at random, find the probability that all are white.

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Probability

03/02/21

P(A)= 0.23 P(B)=0.72 P(A and B)=0.05 Find P(B/A)

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Probability

03/02/21

Given n(A)= 39 Given n(B)=78 Given n(A and B)=15 Find n(A or B)

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Probability

03/02/21

In a large population, 63% of people have been vaccinated. If four people are randomly selected, what is the probability that at least one of them have been vaccinated?

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Probability

03/02/21

You toss a coin 4 times. What’s the probability that you get at least one tail?

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A bag contains 12 marbles: 5 are orange, 3 are blue, and the rest are red. If one marble is selected at random from the bag, what is the probability that it will be red or blue?

Standard Deviation

Standard Deviation

In Happy Hills Pond, 2 out of 5 fish are goldfish. If 40 fish were randomly chosen from the pond, which is most likely the number of goldfish chosen?

Continuous Random variables

Simple permutation math urgent help requested.

if there is 176 people in an event and only 10 get chosen,what is the probability that i get chosen

If you roll a PAIR of dice, what is P(<7, 2 dice)? Give your answer in decimal form.

Probability question

Probability question

Marble Probability

An urn contains 7 blue balls, 12 red balls, 6 green balls, and 14 yellow balls. You stick your hand in and pull out a ball without looking. What is the probability of selecting a red ball?

Probability or ratio question

Probability or ratio question

HELPP probability marbles

random sample of 1353 adult showed that 688 of them has stopped at least once on the internet. What is the probability that randomly selected adult has stopped on the internet

Cruise Ship Problem

Answer and solution for this please. Thank you! A class has 8 boys and 15 girls. If three students are selected at a random from the class, what is the probability that they are all boys?

Can someone help me with sampling distribution of the sample mean?

Trouble with urn question

A bag contains five black, three red, and eight white balls. If three balls are drawn at random, find the probability that all are white.

P(A)= 0.23 P(B)=0.72 P(A and B)=0.05 Find P(B/A)

Given n(A)= 39 Given n(B)=78 Given n(A and B)=15 Find n(A or B)

In a large population, 63% of people have been vaccinated. If four people are randomly selected, what is the probability that at least one of them have been vaccinated?

You toss a coin 4 times. What’s the probability that you get at least one tail?

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