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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 do you find the probability of two distincve events?
It depends on whether or not the events are independent.
What is a sample that that consists of everyone in the population?
It is not a sample. A sample must be a proper subset of the whole population.
What is the best definition of probability?
the extent to which something is probable; the likelihood of something happening or being the case.
the chance that something will happen
the likelihood of an event occurring
What happens in the event of a vacancy occurring in either chamer of congress?
== == the govenor appoints someone the govenor appoints someone
What is the probability of getting four consecutive twos from tossing a fair number cube?
The probability of the first one is 1/6 .
The probability of the second one is 1/6 .
The probability of the third one is 1/6 .
The probability of the fourth one is 1/6 .
The probability of all four is (1/6)4 = 0.0007716 (rounded) = 0.077 %
What is the probability is of getting 3 heads in a row if I toss the coin 10 times?
The probability of getting 3 or more heads in a row, one or more times is 520/1024 = 0.508
Of these,
the probability of getting exactly 3 heads in a row, exactly once is 244/1024 = 0.238
How do you get Goku's powers in real life?
You can't get his powers but you can make it look real. Step1:get a video camera and act like Goku when he is doing an Techniche, Step2: make sure it was recorded otherwise hit the record button and do it again, Step3:take the recorded video edit it to where it looks like it was real so basicly go to paint and draw on a picture of the techniche, Step4:If you have a Youtube account (if you don't have one go make it on Youtube.com) save the video and upload it to Youtube. I tried it myself and it actualy worked!
0.63 = 0.216
The probability of obtaining exactly two heads in three flips of a coin is 0.5x0.5x0.5 (for the probabilities) x3 (for the number of ways it could happen). This is 0.375. However, we are told that at least one is a head, so the probability that we got 3 tails was impossible. This probability is 0.53 or 0.125. To deduct this we need to divide the probability we have by 1-0.125
0.375/(1-0.125) = approximately 0.4286
What are some probable preoperative diagnosis for a vulvectomy?
Vulvar cancer is the typical diagnosis.
50:50
0.48
How do you ride a bike on ice easily?
Get a pair of studded tires.
Go steadily and easily but you can go fast if you are steady and a good bike handler. Give it a shot it is fun.
Each question is an independent event with 4 possibilities, so the possibilities are 48 = 65,536
What does the 2 percent tornado probability from the spc typically mean?
A 2 percent tornado probability typically means that isolated and probably weak tornadoes are possible.
What are the uses of Normal Distribution?
The normal distribution is very important in statistical analysis. A considerable amount of data follows a normal distribution: the weight and length of items mass-produced usually follow a normal distribution ; and if average demand for a product is high, then demand usually follows a normal distribution.
It is possible to show that when the sample is large, the sample mean follows a normal distribution. This result is important in the construction of confidence intervals and in significance testing. In quality control procedures for a mean chart, the construction of the warning and action lines is based on the normal distribution.
How many people study Hinduism right now?
There are an estimated one billion people who profess to study some aspect of Hinduism as of 2013. This number has increased dramatically over the last ten years.
How many spades are there in an ordinary deck of playing cards?
There are 13 spades in a standard deck of 52 cards.
What is the probability of pulling two kings out of a deck of 52?
The probability of drawing two kings from a standard deck of 52 cards is (4 in 52) times (3 in 51), or 12 in 2652, or 1 in 221, or about 0.004525.
What is the difference between independent events and mutually exclusive events?
Independent events are events which are not connected; for example, my choice of food for lunch will have no affect on your choice of a shirt to wear in the morning. Mutually exclusive events are connected. If one happens, the other can't happen. For example, let us say that you are flying an airplane and you have a choice of airports at which you can land. If you land at one airport, you will therefore not land at the other airport, because you can land at only one airport at a time (although you can still land at other airports in the future). At a given time, the events of landing at airport A and landing at airport B are mutually exclusive.
How do you construct a probability distribution?
First decide whether the event space is discrete or continuous.
For a discrete event space, for each outcome in the space assign a probability: a number in the interval [0, 1] such that the sum of probabilities for all outcomes is 1. The mapping from the event space to the probabilities is the probability distribution function.
The procedure for a continuous event space is analogous: the sum is replaced by the integral.
