803 Answered Questions for the topic Probability & Statistics

Probability & Statistics Probability Finite Mathematics Venn Diagram

02/14/15

How many different codes are possible?
Assume that X = { A, D, E} and Y = { 7, 4, 6, 2}. A code consists of 2 different symbols selected from X followed by 2 not necessarily different symbols from Y.
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Probability & Statistics Probability Finite Mathematics Venn Diagram

02/14/15

How many ways can the trip be outfitted?
involving the outfitting of a camping trip. Assume that the camper has 5 jackets, 5 sleeping bags, and 11 different packages of food. An outfit consists of 1 jacket, 2 sleeping bags, and 8 packets of
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Probability & Statistics Probability Sets Finite Mathematics

02/14/15

How many subsets of S have at most 4 elements?
Assume that the set S has 13 elements.
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Probability & Statistics Probability Sets Finite Mathematics

02/14/15

(1) How many different teams can be selected? (2) How many different teams can be selected if each team must contain exactly 4 girls and 3 boys? (3) How ma
Assume that there are 9 girls and 10 boys in the neighborhood club, and a team of 7 is to be selected.
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Probability & Statistics Probability Word Problem Word Problems

02/13/15

Practice Test Question, Probability with Percents, Please Help?
Mrs. Jones surveys her class about their siblings. In the class, 75% of the students have a brother, 82% have a sister, and 65% have both a brother and a sister. What is the probability that a... more
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Probability & Statistics Probability Sets Counting

02/11/15

In how many ways can this be done?
the chairperson who must select a subcommittee but assume that the committee consists of 13 people including the chairperson and that the chairperson must select a committee of 3 people from the... more
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Probability & Statistics Probability Sets Counting

02/11/15

Compute the following:
(1) C(6,3) = (2) C(7,3) = (3) C(9,5) = (4) C(8,2)· C(8,6) =
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Probability & Statistics Math Math Help Math Equations

02/11/15

probability
A floor is covered with 64 square foot tiles. All the tiles are beige except for the ones listed in the table. If you toss a quarter on the floor at random, what is the probability that it will... more
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Probability & Statistics Sets Values Finite Mathematics

02/10/15

What is the value of w3? What is the value of w4? What is the value of w1?
For this problem, assume that 3, 6, 5, and 2 are equally likely, a 4 is four times as likely as a 2, and a 1 is twice as likely as a 4.
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Probability & Statistics Probability Sets Finite Mathematics

02/10/15

What is the value of Pr[E]? What is the value of Pr[F']?
For this problem, assume that S = { O1, O2, O3, O4 } and that w1 = 0.07, w2 = 0.29, w3 = 0.18, w4 = 0.46. Let E = { O1 , O2} and F = { O4 , O3}.
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Probability & Statistics Probability

02/10/15

Probabilty Question
A university's leadership council is made up of members: are students, are teachers, and are deans. A newspaper reporter is planning to select two of the council members for interviews. The first... more
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Probability & Statistics

02/06/15

The lengths of turtles in a park are normally distributed with a mean of 23.2 and a standard deviation of 5.6 inches. what is the percentile rank of a turtle wh
 The lengths of turtles in a park are normally distributed with a mean of 23.2 and a standard deviation of 5.6 inches. what is the percentile rank of a turtle whose length is 15 inches? I use the... more
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Probability & Statistics

02/03/15

If two dice are rolled, what is the probability of getting two numbers greater than 4?
1/3, 1/36, 1/6 or 1/9
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Probability & Statistics

02/03/15

Probability of fishes
Consider a lake full of three species of fish: walleye, bass andperch. The lake contains 800 walleye, 800 bass and 400 perch. (This population is large enough thatyou can consider all samples to be... more
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Probability & Statistics Probability Probability Problems

01/29/15

Someone could help me to solve this problem - Probability Exercise! Thank you!
Over a long period of time in a large multinational corporation, 10% of all sales trainees are rated as outstanding, 75% are rated as execellent/good, 10% are rated as satisfactory, and 5% are... more
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Probability & Statistics Probability

01/28/15

Someone could help me to solve this problem - Probability Exercise! Thank you!
In an inspection of automobiles in Los Angeles, 60% of all automobiles had emissions that do not meet EPA regulations. For a random sample of 10 automobiles, compute the following probabilitiesA-... more
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Probability & Statistics

01/28/15

Someone could help me - Probability Exercise! Thank you!
Over a long period of time in a large multinational corporation, 10% of all sales trainees are rated as outstanding, 75% are rated as execellent/good, 10% are rated as satisfactory, and 5% are... more
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Probability & Statistics Odds

01/21/15

How do I calculate the probability that atleast one will be tails when two coins or more are tossed?
Lets say 0 Is Heads and 1 Is tails If I toss a coin, there is 50% chances it lands on either side.01With two coins it means I could either have eitherOption 1:0 00 0 0 11 01 11 1Or Option 2:0 00 11... more
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Probability & Statistics

12/18/14

probability
a number smaller than 25 is chosen at random. find the probability of choosing: a factor of 20, an even number or a 7, a number smaller than 15
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Probability & Statistics

12/16/14

What is the probability that the student's alarm clock will not work on the morning of an important final exam
the principle of redundancy is used when system reliability is improved through redundant or backup components. Assume that a student's alarm clock has a 13.4 daily failure rate. 
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Probability & Statistics High School Maths

12/16/14

Statistics - Probability
Sam and Tina both have intentions to a Christmas party. The probability that Sam will go is 0.2. The probability that Tina will go is 0.9 if Sam goes, and 0.3 is Sam does not go.a) What is the... more
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Probability & Statistics

12/06/14

Probability
If you roll 5 six-sided dice what is the probability of rolling only one 6? what is the probability of rolling one or more 6's?   I don't understand how to find the total amount of outcomes much... more
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Probability & Statistics

12/06/14

Thirty-one biased coins are flipped once. The coins are weighted so that the probability..
Thirty-one biased coins are flipped once. The coins are weighted so that the probability of a head with any coin is 0.4. What is the probability of getting at least 16 heads?
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Probability & Statistics

12/03/14

Trying to confront a company regarding defective rates for units.
I have tried to do this myself, but the math escapes me *sigh* I am a forum owner and a company is having serious defective issues. We know that their "claimed" defective rate is WAY off and we... more
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Probability & Statistics

12/01/14

If the odds against an event are 3 to 5, what is the probability of the event occurring?
It's probability
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