5,385 Answered Questions for the topic probability

Probability

03/16/21

Considering the Probability of the Series
As we know the probability of a series of events (independent) is p1 times p2 times Pn. Let's say that there are two gamblers and that they are both playing a game that requires guessing a number... more
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Probability

03/16/21

Probability distribution
The arrival time of an elevator is equally likely at any time range during the next 4 minutes. a. Calculate the expected arrival time. b. What is the probability that an elevator arrives in less... more
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Probability Probability In Math

03/16/21

Math Probability homework :(
hello! im an eight grade student and im having trouble with my online seatwork. Can someone help me? License plates of automobiles consist of 3 letters of the English alphabet and a three-digit... more
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Probability Math Statistics

03/15/21

Statistics probability

The average number of chocolate chips in one ounce is 57 with a standard deviation of 1.6. Find the probability that a randomly selected ounce of chocolate chips will contain between 54 and 59... more
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Probability Math Statistics Mean

03/15/21

Statistics mean

About 2% of the population has a particular genetic mutation. 100 people are randomly selected. Find the mean for the number of people with the genetic mutation in such groups of 100
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Probability Math Statistics Sat Math

03/14/21

Can you please solve this set/probability math?
Out of 500 candidates, 160 failed in Mathematics, 155 in Physics, 135 in English, and 55 in all three. What is the probability of failing at least 2 subjects again if the failing candidate from the... more
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Probability Algebra 2

03/14/21

Word Problem Probability

Jackson can strangely guess the height and weight of people. The probability that he correctly guesses a person's height is 2/3, and the probability that he can correctly guesses a person's weight... more
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Probability Algebra 2

03/14/21

Word Problem Probability

In an island of 2,500 people, 800 people are over 60 years old and 850 people are female. It is known that 40 percent of the female are younger than 60 years old. If no one in the island is 60... more
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Probability

03/12/21

If i have 2 types of balls in a bag one is red and other is blue balls. I am choosing randomly (don't know which color i will get). Then what is probability that i will get red balls 6 time in a row
If i have 2 types of balls in a bag one is red and other is blue balls. I am choosing randomly (don't know which color i will get). Then what is probability that i will get red balls 6 time in a... more
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Probability

03/12/21

How are Exponential and Gamma distribution related?

Suppose the survival time X in weeks of a randomly selected male mouse exposed to 240 rads of gamma radiation has a gamma distribution with 𝛼 = 8 and 𝛽 = 15. What is the probability that a mouse... more
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Probability

03/12/21

A statistical professor plans classes so carefully that the length of the classes are uniformly distributed between 49mins to 54mins.

What is the probability that on a certain day he teaches less than 50.5 mins?
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Probability

03/12/21

probability statistics
the sample space s= ( E1,E2,E3,E4,E5,E6,E7,E8,E9,E10,E11) and A=(E5,E6,E7,E8) and B=(E5,E7,E9,E11) what is A interaction B?what is the A union of A and B?
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Probability

03/11/21

Given P ( A ) = 0.7 P(A)=0.7, P ( B ) = 0.56 P(B)=0.56 and P ( A ∩ B ) = 0.522 P(A∩B)=0.522, find the value of P ( B ∣ A ) P(B∣A), rounding to the nearest thousandth, if necessary.
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03/11/21

Of the last 10 people at a carnival booth, 4 won a prize. What is the experimental probability that the next person at the booth will win a prize?
A] .1B] .2C] .3D] .4
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03/11/21

At a garden center where she works, joy recently stopped a wide....
At the garden center where she works, Joy recently stocked a wide selection of herb plants; 17 sage, 24 basil, one cilantro, 7 thyme, and 9 Rosemary. What is the experimental probability that the... more
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03/11/21

Statistics help!
Tennis superstar Nadal's first serve speeds in a recent season can be modeled by a normal distribution with mean 115 mph and standard deviation 6mph. let x = the speed (in mph) of a randomly... more
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Probability Math Statistics Statistics

03/11/21

Statistics Probability

from 1985 to 2006 the average height of an NBA player was 6 foot 7 (79 inches) suppose the distribution is approximately normal and the standard deviation is 2.8 inches. what is the probability... more
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03/11/21

Statistics Probability

A manufacturer knows that their items have a normally distributed length with a mean of 17.4 inches, and a standard deviation of 1.4 inches. if 13 items are chosen at random what is the probability... more
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Probability Statistics

03/10/21

need help solving this problem. simplified. please include answer.
In a certain city, 60% of high school students graduate. Of those who graduate, 28% attend college. Find the probability that a randomly selected high school student will attend college.
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Probability

03/10/21

There are 435 seniors at a high school and they are all placed in groups consisting of more than 2 students but fewer than 30 students.
There are 435 seniors at a high school and they are all placed in groups consisting of more than 2 students but fewer than 30 students. Each group is to have an equal number of students and each... more
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Probability

03/10/21

What is the probability that you will draw a Ace card from a standard deck of cards (52)? Your answer should be in simplest fraction form.
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Probability

03/10/21

What is the probability you pick a student in the school and they prefer to use Tik-Tok OR they are a Junior? (Write as a percent rounded to the nearest hundredth)
Classification Tik-Tok Snapchat Total Freshman 345 122 467 Sophomore 289 203 492 Junior 178 109 287 Senior 103 189 292 Total 915 623 1538
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Probability

03/10/21

it long so i put it in the description
.A basketball player has a 60% chance of making each free throw. What is the probability that the player makes exactly three out of six free throws? Write your answer as a decimal number and round... more
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Probability

03/10/21

it long so i put it in the description
An archer has a 25% chance of hitting the bullseye on a target. What is the probability that the archer will hit the bullseye at most three out of five times? Round your percent answer to the... more
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Probability

03/10/21

it long so i put it in the description
An archer has a 25% chance of hitting the bullseye on a target. What is the probability that the archer will hit the bullseye at most three out of five times? Round your percent answer to the... more
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