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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
What is the probability of getting a 9 on a roll of 3 dice?
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Each dice gives 6 faces, that means we have 6x6x6=216 results for rolling 3 dice.
The easy way is to make a table and count how many 9 are there, you will find 25.
that means we will get 25/216
How many different three letter permutations can be from the letter in the word clipboard?
There are 9 * 8 * 7, or 504, three letter permutations that can be made from the letters in the work CLIPBOARD.
The area under N(0,1) from -1 to 1 = 0.6826
Very low (less than 0.00000000001%)
Albino and albino have child What is the probability that child will be albino?
theres a half and half chance it will and theres a half and half chance it wont
What is the probability of rolling a sum of eleven with two number cubes?
The probability of getting 11 is 2/36 = 1/18. This is because of the 36 ways the dice might land, two of them sum to 11, namely 5 + 6 and 6 + 5.
How many percent chance of being successful when you are not academically qualified?
Judging by the grammar used in asking this question, I would say the probability of you being successful is somewhere between 0 and .1%, sorry. In your next life you should try paying attention in school.
yes
P(AUB)=P(A)+P(B) but only for mutualy exclusive events
What is normal binomial distribution?
There is no such thing. The Normal (or Gaussian) and Binomial are two distributions.
What percentage is the first distribution sextile of a normal bell curve?
For any distribution, the first sextile, by definition, must be 100/6 = 16.66... %
What is the probability of getting heads on all 3 times if flips coin 4 times?
If a coin is flipped 4 times, the probability of getting 3 heads is:
4C3 (1/2)^3 (1/2)^1 = 4(1/8)(1/2) = 4/16 = 1/4
What is the importance of probability and statistics?
The importance of probability and statistics can be found in many business aspects. For example, a loan officer at a bank is going to need to analyze statistical data to determine the feasibility of a loan on a house in a given area. Scientists use probability and statistical data when performing experiments. It is also used in astronomy to calculate where a given star will be at a given time based on past statistical data.
What is the probability that a three digit number chosen at random is dividable by 2?
according to me its 1/2 as the possibility of getting an even is 1/2
Which has the least variability Mean Standard Deviation 0.560 Median Standard Deviation 0.796?
msd 0.560
How many ways can you rearrange the letters in group?
You can arrange the letters in group One hundred and twenty-five different ways.
How do they find out the probability of winning the national lottery?
Calculate the number of possible combinations. The probability of winning is the reciprocal of that number.
To calculate the number of combinations, suppose you have to choose r number out of n. Then the number of combinations is n!/[r!*(n-r)!] where n! = 1*2*3*...*n.
Thus, for the UK national lottery (Lotto) n = 49, r = 6 so the relevant number is
49*48*47*46*45*44/(6*5*4*3*2*1) = 13,983,816 or approx 14 million. Each combination is equally likely so the probability of winning is 1/14 million, approx.
Calculate the number of possible combinations. The probability of winning is the reciprocal of that number.
To calculate the number of combinations, suppose you have to choose r number out of n. Then the number of combinations is n!/[r!*(n-r)!] where n! = 1*2*3*...*n.
Thus, for the UK national lottery (Lotto) n = 49, r = 6 so the relevant number is
49*48*47*46*45*44/(6*5*4*3*2*1) = 13,983,816 or approx 14 million. Each combination is equally likely so the probability of winning is 1/14 million, approx.
Calculate the number of possible combinations. The probability of winning is the reciprocal of that number.
To calculate the number of combinations, suppose you have to choose r number out of n. Then the number of combinations is n!/[r!*(n-r)!] where n! = 1*2*3*...*n.
Thus, for the UK national lottery (Lotto) n = 49, r = 6 so the relevant number is
49*48*47*46*45*44/(6*5*4*3*2*1) = 13,983,816 or approx 14 million. Each combination is equally likely so the probability of winning is 1/14 million, approx.
Calculate the number of possible combinations. The probability of winning is the reciprocal of that number.
To calculate the number of combinations, suppose you have to choose r number out of n. Then the number of combinations is n!/[r!*(n-r)!] where n! = 1*2*3*...*n.
Thus, for the UK national lottery (Lotto) n = 49, r = 6 so the relevant number is
49*48*47*46*45*44/(6*5*4*3*2*1) = 13,983,816 or approx 14 million. Each combination is equally likely so the probability of winning is 1/14 million, approx.
What is the probability that the spinner will stop on 1-4?
The depends on what other numbers exist on the spinner. If there are a total of six numbers on the spinner, for instance, the probability of spinning a 1-4 is 2 in 3.
