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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
Is Inferential statistics based on probability theory?
Yes; the p value used in hypothesis testing is probability. See the related link.
What is the role of identical twin studies?
One aim is to provide more information on the "Nature/Nurture" debate: how much of a person's character is genetically pre-determined (nature) and how much is influenced by the way in which they are brought up (nurture).
Cindy has 414 cards She gives 126 to Macy How many cards does Cindy have now?
Cindy now has 288 cards.
What are the most likely sums to be rolled on two regular dice?
- 1 + 6
- 2 + 5
- 3 + 4
- 4 + 3
- 5 + 2
- 6 + 1
What is the probability that a card drawn from a standard deck is a heart or an 8?
the probabiity that you draw a heart is 13/52 or 1/4, since a quarter of the cards are hearts. Since you want to know the probability of BOTH events happening, you multiply the two. One half times one fourth is 1/8, or A.
What is the duce in a pack of playing cards?
deuce1 (dūs, dyūs) ---- [Middle English deus, from Old French, two, from Latin duōs masculine accusative of duo.]
- A playing card having two spots or the side of a die bearing two pips.
- A cast of dice totaling two.
How do find the probability of 27 and 11?
There is insufficient information in the question to answer it. Please restate the question.
What is the probability of rolling an odd number on one toss of a number cube?
A half.
A half.
A half.
A half.
Does a large percent Relative Standard Deviation number indicate less precision?
Only if you assume that the true values are supposed to be the same every time. Otherwise, it is also possible that there is, indeed, a lot of variation among the values.
How many outcomes are there in the sample space for rolling 1 die?
It depends on how many sides your die has. If it has 6 sides, then there are 6 possible out comes.
it is 6/9 simplifyyou get 2/3.
Density function of a continuous random variable?
I am not quite sure what you are asking. If this answer is not complete, please be more specific.
There are many probability density functions (pdf) of continuous variables, including the Normal, exponential, gamma, beta, log normal and Pareto.
There are many links on the internet. I felt that the related link gives a very "common sense" approach to understanding pdf's and their relationship to probability of events.
As explained in the video, a probability can be read directly from a discrete distribution (called a probability mass function) but in the case of a continuous variable, it is the area under the curve that represents probability.
How many different arrangements of the letters in the word BETTER are there 180 360 720?
There are 180.
What is so scary about the optical illusion with the blue rubbish bag?
There is notging scary about it LOL
What will be the winning Easy 5 winning numbers in the Louisiana Lottery?
You cannot predict the outcome of a game of random chance.
If you could, you could rule the Earth, but then you would also be bound by higher laws, and that is out of scope for this question.
Why are two kings in a deck of cards called suicide kings?
Because it appears that the King of hearts is holding his sword to his head, as if he is getting ready to run himself through
