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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
How many ways can you arrange 4 squares?
Since we're arranging squares, I'm assuming the arrangements are all going to be only two-dimensional and no stacking is allowed. If you have played tetris before, you'll know that can be arranged into :
1) A straight line
2) A 2 by 2 square
3) A T-shape
4) A L-shape
5) An inverted L-shape
6) A ladder
7) An inverted ladder
That's all the seven different arrangements for four squares.
Is Kate Spade David spades sister?
Kate is married to David's brother, Andy. Kate is David's sister in law.
What is the sum of values in a data set divided by the number of values?
It is the mean or average value of the n values.
[Σn xi]/n =
xmean
What is the probability of landing on number 4 if you spun a spinner numbered 1 through 4?
The probability is one in four, or 25%.
What is the probability of getting a number greater than 4 when rolling a single die once?
the probability is 2/6
Is N the sample or population mean?
N is neither the sample or population mean. The letter N represents the population size while the small case letter n represents sample size. The symbol of sample mean is x̄ ,while the symbol for population mean is µ.
What is the difference between probability and actuality?
probability is a guess and actuality is what will happen
What is the probability the random variable will assume a value between 40 and 60?
It depends on what the random variable is, what its domain is, what its probability distribution function is.
The probability that a randomly selected random variable has a value between 40 and 60 is probably quite close to zero.
What are the best statistics to use for data that is normally distributed?
The mean and standard deviation. If the data really are normally distributed, all other statistics are redundant.
How many combinations can you roll using six dice?
Well, darling, when you roll six dice, there are a whopping 46,656 possible combinations. So, if you're feeling lucky, go ahead and roll the dice - just don't come crying to me if you don't get the combination you were hoping for!
64.
What is the distance of deneb?
According to Wikipedia, Deneb's exact distance from the Earth is uncertain, which makes determining many of Deneb's other properties similarly imprecise. However, the uncertainty has been dramatically reduced upon analysis of the New Hipparcos Data Reduction in 2007. One 2008 study puts the most likely distance at 1,550 light-years, but there is still a considerable uncertainty of more than 10%. The reduced parallax uncertainties do not rule out a distance as close as 1,340 light-years or as far as 1,840 light-years. It is the farthest first-magnitude star from Earth.
What is it called when you find the probability that something won't happen?
Its called confidence. For instance a girl kept her keys on the dinning table where other friends saw her keeping it, now when she comes after a gap of two minutes after serving herself, the keys were gone, five people checked the entire flat, it was nowhere. Then you check your flat, its not there, someone in the morning comes to return the keys. What is the point of doing that when one had to break the lock a day before.
Alternate Answer:
Probability is a statistics based number that expresses numerically, and as a result of scientific measure and study, the likelihood that an event will occur. the process of arriving at a measure of likelihood of whether or not an event will or will not happen is called "developing a theory of probability." This number can be represented by either a ratio, or by a percentage. For example 1:1 would be ratio of probability that if you put your keys on the dining room table, and nobody else is at home, the keys will stay on the table. Introducing additional degrees of freedom to the equation, such as other people of nefarious backgrounds, or even a cat or a parrot, will alter the statistical probability that the keys will remain stationary. The lower the ratio, it becomes less statistically likely, or probable, that the keys will remain stationary. For example, our theory of probability may state that "With a kitten in the house that likes to get on top of the furniture and play with shiny things, the likelihood of the keys remaining stationary is 100,000:1; or very nearly 0%" Alternately, with a slight tweak to how the theoretical probability is stated, we can take the same exact number, invert it, and provide an inverse statistical probability. For example, we may say that, based on the criminal background of our house guest, the statistical probability is 100% that you will have to have new keys made for your apartment.
Is it possible to throw a zero when you roll a die?
Depends on what kind of dice you have, if a standard dice it's not possible
What is the number of permutations of the letters in the word quiet?
5! = 5*4*3*2*1 = 120 different permutations of the letters in the word quiet.
Permutations are like combinations, only we're saying that order matters (if you're having trouble remembering which is which, think about it this way--if you're getting a perm, the order of the steps is important). So, in short, quiet is different from quite, which is different from teiuq, because the letters are in a different order.
The formula for permutations is nPr = n! over (n-r)! where n is the number of things you have to choose from and r is the number of things you're choosing. Since you're rearranging all the letters in quiet, you have 5P5 = 5! over 0!. 0! = 1 (by definition--think about it this way, how many ways can you choose 0 things? Just 1--don't pick any of them) so your problem simplifies down to just 5!, which I answered above.
What is the probability of an event that is certain to happen?
The probability of a certainty is 1. (100%)
What is the probability of choosing a letter from the word probability?
Since the word "probability" contains only letters, then the probability of choosing a letter from the word "probability" is 1, i.e. it is certain to happen.
What is the probability of an odd number?
There is insufficient information for us to even begin to understand this question. Please edit the question to include more context or relevant information. The answer depends on whether you are referring to rolling a die (or dice), or a spinner, or drawing a card from a deck of playing cards.Since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
What is the probability that divisor of 1099 is a multiple of 1096?
u posted the question in wrong way... it must be... 1099 and 1096
the answer is 1/625...
What are the odds of having two children born on the same birthday in different years?
I don't know what the exact odds are but it does happen:
My Mum and her older sister are born on the same day 3 years apart,
add to the statistical odds of fun I was also born on the same day.
Save
don't very likely
