5,385 Answered Questions for the topic probability

Probability

05/08/21

Please solve the question below and show the steps

In a class of 25 students, 11 students participate in extra-curricular activities. Suppose 3 students are randomly selected to be on the student representative council. Find the probability that... more
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Probability Statistics Mathematics

05/08/21

pls help me on answeringgg my homework beloww
The student council planned to have a Field trip. They're considering 3 attractions in Manila, 2 attractions in bulacan, and 4 attractions in laguna. If they are to choose 3 attractions to go to,... more
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Probability

05/07/21

If u have 2 green jelly beans, 4 red jelly beans, and 2 yellow jelly beans. If u have to pick one green jelly bean, what is the probability?
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Probability

05/07/21

CARD SELECTING QUESTION!!
Consider selecting 13 cards randomly from a pack of 52 cards. What is the prob that those 13 cards contain exactly one king given that those 13 cards contain 2 queen.
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Probability

05/07/21

DISTRIBUTION FUNCTION PROBABILITY!
IF DISTRIBUTION FUNCTION OF X IS GIVEN BY-F(B)={ 0 B<0 1/2 0<=B<1 3/5 1<=B<2 4/5 2<=B<3 9/10 3<=B<3.5 ... more
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Probability Geometry

05/06/21

Interpreting Conditional Probability 3
Of all the yoga students in a particular area, 20% study with Patrick and 80% study with Carl. We also know that 8% of the yoga students study with Patrick and are female, while 66% of the students... more
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Probability Geometry

05/06/21

Interpreting Conditional Probability 2
If 21% of males and 15% of females in a given state play the guitar, what is the probability that a randomly selected subject in the state plays the guitar, given that the subject is... more
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Probability Geometry

05/06/21

Interpreting Conditional Probability 1
The Breaker's Manufacturing Company makes 80% of a particular sensor, the Cartin Company makes 15% of them, and the Flutes Company makes the other 5%. The sensors made by Breaker's have a 4% defect... more
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Probability

05/06/21

Permutations and Combinations
From a group of 3 accountants, 4 doctors and 5 lawyers a sub-committee of four people is selected at random. Find the probability that the sub-committee will consist of 2 accountants and 2 lawyers.?
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Probability Math Statistics

05/06/21

The Dean of Mechanical Engineering....
The Dean of Mechanical Engineering is currently concerned with the amount of noise in the campus building, and plans on moving to the lower grounds. He claims that if all the classes will transfer,... more
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Probability Math Statistics

05/06/21

A survey of 162 students...
A survey of 162 students nationwide showed a mean ACT score of 77.6. A survey of 138 Ohio scores showed a mean of 83.9. If the population standard deviation in each case is 16.62, and at alpha... more
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Probability Trigonometry

05/05/21

(NEEDED ASAP) When rolling a die, find the probability of each.
P(1 and 4) P(1 or 4) for #2, i think the answer is 1/3 but I just want to make sure if i’m right or not.
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Probability Mathematics

05/05/21

Probability for 6 and 11 sets
2 sets formulasP(A∪B)=P(A)+P(B)−P(A∩B)3 sets formula P(A ∪ B ∪ C) = P(A) + P(B) + P(C) − P(A ∩ B) − P(A ∩ C) − P(B ∩ C) + P(A ∩ B ∩ C).4 sets formulaP (A U B U C U D) = P(A) + P(B) + P(C) +P(D) -... more
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Probability

05/05/21

Conditional probability
Let events A and B be two events such that 𝑃(𝐴 ∩ 𝐵) = 𝑃(𝐴)𝑃(𝐵) 𝑤𝑖𝑡ℎ 𝑃(𝐵) ≠ 0. What is the relation between events A and B? Show that it is also the case that 𝑃( 𝐴/𝐵) = 𝑃(𝐴).
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Probability Math

05/05/21

Sixteen students study Algebra, 21 study Biology, and there are 30 students in all. What is the probability that a student chosen at random studies Algebra or Biology?
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Probability Math

05/05/21

Sixteen students study Algebra, 21 study Biology, and there are 30 students in all. What is the probability that a student chosen at random studies Algebra or Biology?
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Probability Math

05/05/21

What is the probability of drawing an ace or a king from a standard deck of cards?
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Probability Math

05/05/21

What is the probability of drawing an ace or a king from a standard deck of cards?
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Probability Math

05/05/21

If a card is drawn from an ordinary deck of 52 cards, find the probability that the card is
a. a red card?_______b. a diamond card or a face card?_______c. a diamond card and a black card?_______
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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... more
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Probability

05/04/21

Pemutations and combinations
In case, find n:a) nP4 = 30 nC4.b) nCn−2 = 10.
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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,... more
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Probability

05/04/21

business statistics
Suppose that a Covid-19 testing centre receives two phones calls, on average, per minute concerning test results. Required: a) What are the conditions for this experiment to be considered a Poisson... more
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Probability

05/04/21

Please help with this!!

Given that you pull a pair of Jack’s from a deck of cards without replacement, what is the probability that exactly 1 of them is are red?
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Probability

05/04/21

conditional Probability
The probability that event A occurs is 𝑃(𝐴) = 0.4. B is an event independent of A and the probability of the union of A and B is 𝑃(𝐴 ∪ 𝐵) = 0.7. Find 𝑃(𝐴 ∩ 𝐵).?
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