282 Answered Questions for the topic Probability Problems

Probability Problems

11/29/15

Probability
A Computer company manufacture computer chips used in DVD players. Those chips area made with 47% yield meaning that 47% of them are good and the others are defective. a) If one chip is randomly... more
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Probability Problems

11/28/15

Probability
If the reading of a thermometer is normally distributed with a mean 0.0C and a standard distribution of 1.0C, find the probability that a reading is: a) between 0.0 and 8C b) Less than -8 C
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Probability Problems

11/17/15

Probability that a given machine will break down on a particular day
Copykwik has four photocopy machines: A, B, C, and D. The probability that a given machine will break down on a particular day is given below.P(A) = 1/54 P(B) = 1/65 P(C) = 1/74 P(D) = 1/31... more
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Probability Problems

11/13/15

using bayes theorem
Fora hypothetical magazine, the probability that the reader is male given the reader is at least 35 years old is 0.30. The probability that the reader is male, given that the reader is under 35 is... more
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Probability Problems

10/28/15

word problem
Two fair dice are tossed twice. Find the probability that the sum is 10 or less on the first toss and the sum is 8 or more on the second toss. What is the probability of five or more on the first... more
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10/26/15

Statistics/Probability question
Four balls with different colors: red, yellow, green, and blue, are placed in a box. Every time Amy picks up a ball, then puts it back to the box and draws one again, repeating it five times.  a)... more
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Probability Problems

10/20/15

What is the probability that the program selects 5 as the first number and 7 as the second number?
You created a computer program that randomly selected a number from 1 to 20. You run the program two times.
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Probability Problems

10/11/15

Dice Probability
There is a fair red die 1-6 and a fair blue die 1-6. You roll both dice. What is the likelihood that at least one of these two things will happen? The blue die lands on a 1 or a 2; the red die... more
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Probability Problems Probability Probability & Statistics

10/10/15

Probability
A fair pair of dice is rolled and the sum of the points is noted. What is the probabilit that one of the dice shows 3, given that the sum of the dice is 5. 
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Probability Problems Probability Probability & Statistics

10/10/15

Probability help.
11% of all widgets are defective an inspector randomly sample 14 from a box. What is the probability of finding at least 2 defective widgets?
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Probability Problems Statistics Probability & Statistics

10/08/15

Stat probability help!
Suppose we roll an ordinary balanced six-sided die Let A = {1,2}, B = {2, 5}, C = {2, 4, 6} What is P(A ∩ B ∩ C)
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Probability Problems Probability Probability & Statistics

10/08/15

Suppose there is a 0.16 probability your roommate will forget to mail it. Should your roommate mail your letter, there is a 0.9 probability that post office wi
You ask your roommate to mail a letter for you. Suppose there is a 0.16 probability your roommate will forget to mail it.Should your roommate mail your letter, there is a 0.9 probability that post... more
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Probability Problems Probability Probability & Statistics

10/07/15

An instructor gives his class a set of 13 problems with the information that the next quiz will consist of a random selection of 5 of them.
An instructor gives his class a set of 13 problems with the information that the next quiz will consist of a random selection of 5 of them. If a student has figured out how to do 11 of the... more
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10/05/15

Probability help!!
A biologist finds that 20% of fruit flies have short wings and 26% have eye defects. Assuming these two events are independent what is the probability that a randomly selected fruit fly has neither... more
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Probability Problems

09/26/15

What is the probability that a participant will randomly select a bag containing a sandwich with mayonnaise.
Bag lunches were provided to the participants of a meeting. The sandwiches in the bag lunches were either turkey, ham or beef with either mayonnaise or mustard. Based on the diagram, what is the... more
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Probability Problems

09/12/15

Probability word problem
Of a group of 30 cats, 24 eat tinned or dry food, 10 like dry food and 5 like both tinned and dry food. Find the probability that a selected cat likes only tinned food.   Answer 7/15, but how do... more
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Probability Problems Maths

08/29/15

Probability Math Questions
In a class of 40 students,30 love Mathematics and 20 love Physics.If P(E) is the probability that a pupil selected at random from the class loves both physics and Mathematics,find the range of... more
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Probability Problems Probability & Statistics

08/24/15

probability homework
 the probability that an exam coverage will be about chapter 1 is 0.45, the probability that it will cover chapter 2 is 0.63 and the probability that it will cover either chapter 1 and 2 or both is... more
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Probability Problems

08/22/15

A test with 100 MCQ were set and each question have 4 choices. One mark will be allocated for each correct answer.
If you know the answer for 40 questions and guess the answer randomly for other questions, how many marks will you expect to get? To discourage students from simply guessing the answer randomly,... more
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Probability Problems

07/23/15

word math
According to data released by the Changer of Commerce in a certain city, the weekly wages of factory workers are normally distributed with a mean of $720 and a standard deviation of $60.  What is... more
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Probability Problems

07/21/15

a die is rolled 9 times, what is the probabilty of rolling 4 three's
 a die is rolled 9 times, what is the probability of rolling 4 three's?
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Probability Problems

07/21/15

probability
4 different written driving tests are administered by the Motor Vehicles Division.  One of these four tests is selected at random for each applicant for a driver's license.  If a group consisting... more
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Probability Problems

07/21/15

experiment - probability
 An experiment consists of tossing a (fair) coin three times and observing the resulting sequence of heads and tails.  Let E be the event consisting of all outcomes with exactly two heads.  (a)... more
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Probability Problems Algebra Help Math Help

07/20/15

Probability question
A box contains 5 red marbles, 7 blue, 2 yellow, and 8 green marbles.   If 3 of the marbles are selected at random from the box, what is the probability that: Round your answers to two decimal... more
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Probability Problems

07/17/15

probability
In a P.E. class, 10 students can play basketball, 8 can play paddle tennis, 18 can play kickball, and 4 can play ping pong. What is a student's chances of getting to play paddle tennis?       I... more
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