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Probability
The probability of a certain event is a number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences. In mathematics, it is a measure of how often an event will happen and is the basis of statistics.
14,643 Questions
Where can one get a deck of personalized playing cards?
A deck of personalized playing cards can be found on sites like Shutterfly, Printer Studio, Walgreens Photo, Shindigz, Artscow, Finn Custom, and Ebay.
p(A and B) = p(A) x p(B) for 2 independent events
p(A and B and ...N) = p(A) x p(B) x p(C) x ...x p(N)
In words, if these are all independent events, find the individual probabilities if each and multiply them all together.
What is the probability of scoring 4 on a spinner?
The answer depends on how many sides the spinner has and how they are numbered. It also depends on how many time it is spun.
Yes. The probability of an event is a number between 0 and 1 (or the equivalent 0% and 100%).
What is the probability of flipping heads on the coin?
The probability of flipping Heads on a coin is 1 - a certainty - if the coin is flipped often enough.
On a single toss of a fair coin the probability is 1/2.
What is the probabilty of rolling an even number on the number cube and flipping heads on the coin?
A single roll of a fair number cube: 1/2
A single toss of a fair coin: 1/2
Both events: 1/4
What is the probability of not rolling the difference of1?
Assuming that by a difference of 1 you mean rolling a pair (2) of dice and then subtracting the two numbers that you get individually on each die. Well there are 36 total possibilities. To get a difference of 1 you need a 6&5, 5&4, 4&3, 3&2, or 2&1.
That represents 10 chances. not getting this is 36-10 = 26 chances.
So the probability = 28 / 36 = 7/9.
What does the numerator represent in probability?
It represents the number of favourable outcomes divided by the highest common factor of the number of favourable outcomes and the total number of outcomes.
What is the probability of rolling the same number twice?
In 2 rolls, it's 1/6 = 162/3% if you don't care what the number is.
If you name the number you want before rolling, it's 1/36 = 27/9%.
What percentage is the second distribution sextile of a normal bell curve?
By definition, the 1st 6-tile is the point below which 1/6 of the population falls (irrespective of which distribution is involved). The 2nd 6-tile is the point below which 2/6 of the population falls.
This is 100 * 1/3 ~ 33.3% of the population.
Is there a direct relationship between the power of a test and the probability of a Type II error?
The power of a test is 1 minus the probability of a Type II error.
You could buy (4+1)*(3+1) = 5*4 = 20 combinations. This includes the combination of buying none.
Assuming that all the cedar trees are the same and that the three apple trees are the same, and it doesn't matter which of the apple trees you purchase, then you have the following options: CCCCAAA, CCCCAA, CCCCA, CCCC, CCCAAA, CCCAA, CCCA, CCC, CCAAA, CCAA, CCA, CC, CAAA, CAA, CA, C, AAA, AA or A. This is 19 possibilities.
Because the problem says that you buy trees, the null set (i.e., not buying anyting) is not as option.
How many ways are there to rearrange the letters in inaneness?
The number of permutations of the letters of the word depends upon the number of letters in the word and the number of repeated letters.
Since there are nine letters, if there were no repetitions, the number of ways to rearrange these letters would be 9! or 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1. But don't do the multiplication just yet.
To account for the repeated letters, we need to divide by 3! (for the 3 Ns) by 2! (for the 2Es) and by another 2! (for the 2 Ss).
This gives a final answer of 15,120 permutations of these letters.
How many outcomes if you flip 3 coins?
-- 8 possibilities if the coins are different colors.
-- Only 4 possibilities if you can't tell the coins apart.
What is the meaning of random variable in probability distribution?
It is a variable that can take a number of different values. The probability that it takes a value in any given range is determined by a random process and the value of that probability is given by the probability distribution function.
It is a variable that can take a number of different values. The probability that it takes a value in any given range is determined by a random process and the value of that probability is given by the probability distribution function.
It is a variable that can take a number of different values. The probability that it takes a value in any given range is determined by a random process and the value of that probability is given by the probability distribution function.
It is a variable that can take a number of different values. The probability that it takes a value in any given range is determined by a random process and the value of that probability is given by the probability distribution function.
What can you do to get the experimental probability to be closer to the theoretical probability?
The experimental probability is figured out when a person goes through the trouble of actually trying it out. Theoretical probability is when a person comes to a conclusion of what is most likely, based off of the experiment results.
384,475,000 license plates.
There are 35 different letter/number combinations possible. Each combination has 10,985,000 variants. 35*10,985,000 = 384,475,000
Why is the Gaussian distribution referred to as normal distribution?
Because many naturally occurring variables were approximately distributed according to a Normal bell shaped curve.
Because many naturally occurring variables were approximately distributed according to a Normal bell shaped curve.
Because many naturally occurring variables were approximately distributed according to a Normal bell shaped curve.
Because many naturally occurring variables were approximately distributed according to a Normal bell shaped curve.
What is the probability of a coin landing heads up on two consecutive flips?
In an infinite series of flips it is 1 = a certainty.
In only two flips it is 1/4.
In an infinite series of flips it is 1 = a certainty.
In only two flips it is 1/4.
In an infinite series of flips it is 1 = a certainty.
In only two flips it is 1/4.
In an infinite series of flips it is 1 = a certainty.
In only two flips it is 1/4.
How many ways can the letters in the word country be arranged?
Using all letters? You have seven different letters, so you can rearrange them in 7! (read: seven factorial) different ways, that is, 1 x 2 x 3 x 4 x 5 x 6 x 7.
Why do you think is probability used as basis for inferential statistics?
Inferential statistics are used in situations where it can be assumed that random behaviour(s), subject to the mathematical laws of probability, must be taken into account.
What is the probability of rolling divisors of 12 on both dice?
Of all the six numbers on a cube, only the '5' is not a factor of 12.
Probability of rolling a factor of 12 on the first cube = 5/6 .
Probability of rolling a factor of 12 on the second cube = 5/6 .
Probability of rolling a factor of 12 on both cubes = (5/6 x 5/6 ) = 25/36 = 694/9 %.
It is risk assessment.
It is risk assessment.
It is risk assessment.
It is risk assessment.
