51 Answered Questions for the topic Conditional Probability

05/05/21

#### Conditional Probability Questions

Walt is selling candy outside the supermarket to raise money for new uniforms for the gymnastics team. The probability of a customer stopping to talk to Walt and buying some candy is 2/9 The...
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05/04/21

#### Suppose you have 3 nickels, 1 quarter, and 1 penny in your pocket. You choose a coin, do not replace it, and then choose a second coin.

Suppose you have 3 nickels, 1 quarter, and 1 penny in your pocket. You choose a coin, do not replace it, and then choose a second coin.1.What is the probability of randomly picking a penny first,...
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Conditional Probability

05/01/21

#### Show that the probability of the union of events A and B can be written as follows: 𝑃(𝐴 ∪ 𝐵) = 𝑃(𝐴) + 𝑃(𝐵)[1 − 𝑃(𝐴/𝐵)] .

Show that the probability of the union of events A and B can be written as follows: 𝑃(𝐴 ∪ 𝐵) = 𝑃(𝐴) + 𝑃(𝐵)[1 − 𝑃(𝐴/𝐵)] .

05/13/20

#### Probability: Or Question Without Replacement in a Deck of Cards

What is the probability of drawing a Queen or Heart, not replacing it, then drawing a Five Card?

02/18/20

#### Finite Homework Help, Conditional Probability

A and B are a subset of S, Pr[A|B]=4/9, Pr[A]=9/20, Pr[B']=11/20, what is Pr[B|A']?

10/11/19

#### What is the conditional probability that B does not occur given that A does not occur?

The probability of A is 0.25. The conditional probability that A occurs given that B occurs is 0.25. The conditional probability that B occurs given that A occurs is 0.4. (a) What is the...
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02/10/19

#### Conditional Probability

Assume that Pr[E]=1/2 , Pr[E|F]=2/5, and Pr[E’ intersectionF’]=4/151) find Pr[F]2) find Pr[E intersection F]

Conditional Probability

10/01/17

#### Working on this problem: "If P(A) =.7, P(B) =.4 and P (A intersect B) =.2, find P (~B|~A).

I know P (~A) is .3 and P (~B) is .6 What next?

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.

Conditional Probability

08/02/17

#### probability

I have 7 letters and 6 possibilities with repetition. so that is 7^6 but now they ask me how many word possibilities will not contain one of the letters, how many words will contain one of the...
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06/17/17

#### Conditional Probability

If two cards are drawn without replacement from an ordinary deck, find the probability of a king of any suit and a 2 of clubs being drawn. The probability of a king of any suit and a 2 of clubs of...
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12/19/16

#### Conditional Probability: Are my answers correct?

A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 10% of the time if the person does not have...
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11/10/16

#### I cannot seem to get one portion of this problem right.

An experiment consists of two independent trials. The outcomes of the first trial are A, B, and C, with probabilities of occurring equal to 0.2, 0.6, and 0.2, respectively. The outcomes of the...
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Conditional Probability

06/14/16

#### Conditional probability

if a single fair die is rolled find the probability that the number rolled is a 5 Given that it is odd

Conditional Probability

06/14/16

#### If 2 cards are drawn at random without replacement from a standard deck, find the probability that the second card is red, given that the first card was a heart

no other information

Conditional Probability

06/02/16

#### What is the probability that a student takes geography given that the student is taking environmental science.

In a school, the probability that a student takes environmental science and geography is 0.25. The probability that a student takes environmental science is 0.72. What is the probability that a...
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04/24/16

#### If a marble is chosen at random, which of the conditional probabilities is larger, P(red|large) or P(large|red)? URGENT

A jar contains 11 large red marbles, 4 small red marbles, 8 large blue marbles, and 6 small blue marbles. If a marble is chosen at random, which of the conditional probabilities is larger,...
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04/12/16

#### select a circle

select a circle . these are in circles...1,2,3,4,5,6
Assume that one circle is selected at random and each circle is equally likely to be selected. Determine the probability of selecting.
a...
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03/28/16

#### Conditional Probability & The Multiplication Rule

68% of the citizens approve of a governor. Only 47% of the citizens approve of both the governor and the lieutenant governor. If a randomly selected citizen approves of the governor, what is the...
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03/27/16

#### Conditional Probability & The Multiplication Rule

If the probability of winning a carnival game is 3/7 and you play the game two times, what is the probability that you will win both times or you will lose both times?

03/27/16

#### Conditional Probability Multiplication Rule Help

68% of the citizens approve of a governor. Only 47% of the citizens approve of both the governor and the lieutenant governor. If a randomly selected citizen approves of the governor, what is the...
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03/23/16

#### Conditional Probability Multiplication Rule Help

Suppose three cards are drawn at random from a standard deck. What is the probability they are all face cards?

03/23/16

#### Conditional Probability & The Multiplication Rule Help!

A card is drawn at random from a deck. What's the probability that it is a jack given that it is a face card?

03/22/16

#### Conditional Probability & The Multiplication Rule

What is the probability that a rolled die is a 3 given that it is:a) odd?b) even?I really don't understand this, and how to solve this using conditional probability and the multiplication rule. Any...
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Conditional Probability Statistics Question

03/01/16

#### Billy takes two tests in his probability and statistics class.

The probability that Billy would pass at least one test is 0.9. The probability that he passes both tests is 0.7. The tests are of equal difficulty (that is, the probability that Billy passes test...
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