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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
Given the fact that the browsers which we are forced to use cannot even handle superscripts, it is virtually impossible to give a sensible answer here. URLs are prohibited so I cannot give you a link but I recommend you search Wikipedia for Rayleigh Distribution.
Yes.
How many people would you need to get together to have two people with a birthday in the same month?
To be certain of it, you would need twelve people (simply because that is the number of different possibilities).
To have a better than even chance of it, you would need at least 5 people.
And the correct answer will of course be - 13
If you have 12, they might all have birthdays in different months.
A better than even chance will have to be more than 6 and therefore that answer would be 7.
Refer back to the first clause. The answer is 50 per cent!
John has 150 marbles He gives Harry one fifth of them How many does he have left?
120 marbles.
30 is a fifth of 150; 30 x 5 = 150.
What are the chances of rolling the dice at 1?
For a six sided die , it would be 1/6 as there is an equal chance for every value.
A sum that is a factor of 6 has a greater probability.to my dick
How many times will a roulette wheel will stop on 0 if spun 190 times?
There are two different kinds of roulette wheels: those with numbers 1-36, 0 and 00 and ones without the 00. The first one will be expected to stop on zero 5 times, the second 5.14 times.
Assess hazards is the step in the composite risk management process that is focused on determining the probability and severity of a hazard occurring.
No.
How many different ways can you arrange 10 trophies on a table in a rectangular array?
10+9+8+7+6+5+4+3+2+1=45 ways
What does one need to know to calcuate the standard error of the mean?
Basic arithmetic, for a start.
What is the probability of flipping a coin 4 times and getting heads each time?
The probability on the first flip is 50% .
The probability on the 2nd flip is 50% .
The probability on the 3rd flip is 50% .
The probability on the 4th flip is 50% .
The probability of 4 heads is (50% x 50% x 50% x 50%) = (0.5)4 = 1/16 = 6.25%
What kind sampling based on probability?
Probability sampling, according to which, a member of the population has the same probability of being included in the sample as any other member. Equivalently, each sample of a given size has the same probability of being chosen.
Stratified and cluster sampling are variations on this idea. In stratified sampling, the population can be divided up into strata such that members within each stratum are more like each other than across strata. One example may be school pupils in different year groups. A sampling scheme could assign a number to be sampled from each stratum (perhaps according to how large that group is) and then, within that stratum, to use simple probability sampling.
Cluster sampling is used when the entire population can be split up into clusters. Clusters are selected using probability sampling. Then a census is used within each cluster. For example, if you wanted to sample schools across the country, a simple probability sample would result in schools all over the country and the travelling costs (and time) would be prohibitive. Instead, you divide the country up into regions and take a probability sample of these regions. You end up visiting every school within the few selected regions.
5/12
If it's wrong don't mind me, i'm not even in middle school yet i'm just smart
Comparision between binomial plus normal plus hypergeometric distribution?
The binomial distribution is a discrete probability distribution which describes the number of successes in a sequence of draws from a finite population, with replacement. The hypergeometric distribution is similar except that it deals with draws without replacement. For sufficiently large populations the Normal distribution is a good approximation for both.
Anyone who is going to answer this will need to know what choices there are for the answers. Without knowing this they will not be able to know which cause something dangerous to happen.
