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Probability

11/14/21

Probability Distribution

A bag contains 12 green and 8 orange balls that are identical except for their color.A ball is chosen from the bag, its color noted, and then it is replaced. Eight balls are chosen.(a) Find(i)The... more

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Probability

11/14/21

From a standard 52 card deck, you draw two cards without replacement. What is the probability that both cards are red knowing at least 1 is red?

The probability of a second drawn card being red is (26-1)/(52-1) = (25/51) because we already know one of the 26 red cards is drawn and one is removed from the complete deck.Is there anything I am... more

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Probability Math Precalculus Sat Math

11/13/21

To make the game fair, who should gain points if a 1 is rolled, and how many points should they gain?

A single six-sided die is rolled and point values are assigned to each outcome. The dice is rolled once and if the dice shows a 5 or a 6, Joe gains 6 points. If the dice shows a 2,3 or 4, Fred... more

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Probability Math Precalculus Sat Math

11/13/21

Find the probability that Fred will have a sum of 7, find the probability that Joe and Fred will both have the same sum, and find the probability that billy has a higher sum than 9.

Joe rolls two dice and adds the numbers showing. Fred then rolls two dice and adds the numbers showing.

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Probability Math Precalculus

11/13/21

What is the probability that green is rolled exactly 7 times?

On a dice, one side is red, three sides are green and two sides are blue. The dice is also rolled 20 times.

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Probability Math Math Precalculus

11/13/21

Independent events, A and B where P(B) = 0.25 and P(A ∩ B) = 0.15. Find P(B' l A) and P(A' ∩ B')

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Probability Math Math Precalculus

11/13/21

Independent events, A and B where P(B) = 0.25 and P(A ∩ B) = 0.15. Find P(B' l A) and P(A' ∩ B')

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Probability

11/11/21

Probability Distribution

In a exam, the probability of being awarded a grade A is 0.3.For a group of ten participants, calculate(i)the probability of that three achieve grade A(ii)the probability that at least half achieve... more

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Probability

11/11/21

Probability Distribution

A bag contains 12 green and 8 orange balls that are identical except for their color.A ball is chosen from the bag, its color noted, and then it is replaced. Eight balls are chosen.(a) Find(i)The... more

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Probability

11/11/21

Probability Distribution

In a large town one person in five is left-handed.(a) Find the probability that in a group of 30 person. (i) exactly three will be left-handed (ii) one third will be left handed(b) How... more

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Probability

11/10/21

Probability Distributions

In a box of smarties there are eight different colours which normally occur in equal proportions. Rachael is given 24 smarties, and orange ones are her favourite. Assume they come from a very large... more

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Probability Math Sat Math Act Math

11/09/21

Tricky probability problem

Please help me to solve this one.Mark bought 5 yellow, 3 green, 2 blue, and 2 red notebooks. The next day he brought two of his 12 notebooks. IF he takes the third notebook from the remaining ones,... more

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Probability Statistics

11/05/21

Suppose 35% of CBC students intend to major in the health sciences. What is the minimum sample size required for the distribution of the sample proportion to be modeled by the normal distribution?

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Probability

11/04/21

How would i calculate probability of something with multiple variables?

I wanted to figure out percentage chance of it being a persons birthday within a group of people.

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Probability

11/04/21

Probability Question for Statistics

70% like chocolate ice cream, 40% like strawberry ice cream, and 30% like both. What’s the probability that a randomly selected middle school student likes chocolate ice cream, given that they like... more

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Probability

11/02/21

INDEPENDENT AND DEPENDENT EVENTS

Consider the experiment of randomly selecting a one card from a deck of 52 playing cards a.) Determine whether the event of selecting a king is independent of the event selecting a face.b.)... more

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Probability

11/01/21

Probabilty and statistis

Suppose that the weight of people in a specific town are normally distributed with the mean of 140 pounds and standard deviation of 20 pounds. Answer the following questions: Find the percentage... more

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Probability

11/01/21

Probablity question

Assuming that our random variable Y belongs to Binomial distribution and Y∼ Binomial (n = 36, p = 1/3). Find the probability that Y > 14

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Probability

10/27/21

What is covariance and correlation between two random variables regarding coin flips?

So say Coin A has probability 1/3 of heads and Coin B has probability 2/3 of heads. You pick one of the two coins at random (50% chance of A or B) then flip that coin twice. If X is 0 if tails on... more

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Probability Math

10/27/21

Approximately 10% of men have a type of color blindness that prevents them from distinguishing between red and green. If four men are selected at random:

A). What is the probability that none of them will have color blindness?B). What is the probability that at least one of them will have color blindness?

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Probability Math Calculus Precalculus

10/27/21

What is the Logical Equivalence by following the data below?

Use truth tables to show if the two statements are logically equivalent or not.(p↔~q) ≡ (p ˄~q) ˅ (~p ˄ q)

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Probability Math

10/26/21

Basic Rules of Probabilities

In the rolling of two fair dice calculate the following: P(Sum of the two dice is 5)= P(Sum of the two dice is 8)= P(Sum of the two dice is NOT 9)=P(Sum of the two dice is 4 or 6)= P (Sum of the... more

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Probability Statistics

10/26/21

The probability a male's growth plates fuse before age 17

The ability to determine the age of some individuals can be difficult if there are not quality government records of birth. Bone growth takes place at the growth plates at the end of long bones.... more

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Probability

10/25/21

The time it takes a person to wash the dishes is uniformly distributed between 7 minutes and 16 minutes.

The time it takes a person to wash the dishes is uniformly distributed between 7 minutes and 16 minutes. What is the probability that a randomly selected event of washing dishes will take a person... more

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Probability Statistics

10/25/21

Three fair dice are rolled. Let the random variable X be the number of die that are showing a roll of 1. Complete the probability distribution table. (Give probabilites to three decimals)

x P(X=x)0123

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Probability Distribution

From a standard 52 card deck, you draw two cards without replacement. What is the probability that both cards are red knowing at least 1 is red?

To make the game fair, who should gain points if a 1 is rolled, and how many points should they gain?

Find the probability that Fred will have a sum of 7, find the probability that Joe and Fred will both have the same sum, and find the probability that billy has a higher sum than 9.

What is the probability that green is rolled exactly 7 times?

Independent events, A and B where P(B) = 0.25 and P(A ∩ B) = 0.15. Find P(B' l A) and P(A' ∩ B')

Independent events, A and B where P(B) = 0.25 and P(A ∩ B) = 0.15. Find P(B' l A) and P(A' ∩ B')

Probability Distribution

Probability Distribution

Probability Distribution

Probability Distributions

Tricky probability problem

Suppose 35% of CBC students intend to major in the health sciences. What is the minimum sample size required for the distribution of the sample proportion to be modeled by the normal distribution?

How would i calculate probability of something with multiple variables?

Probability Question for Statistics

INDEPENDENT AND DEPENDENT EVENTS

Probabilty and statistis

Probablity question

What is covariance and correlation between two random variables regarding coin flips?

Approximately 10% of men have a type of color blindness that prevents them from distinguishing between red and green. If four men are selected at random:

What is the Logical Equivalence by following the data below?

Basic Rules of Probabilities

The probability a​ male's growth plates fuse before age 17

The time it takes a person to wash the dishes is uniformly distributed between 7 minutes and 16 minutes.

Three fair dice are rolled. Let the random variable X be the number of die that are showing a roll of 1. Complete the probability distribution table. (Give probabilites to three decimals)

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The probability a male's growth plates fuse before age 17