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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 three?
The answer will depend on what the experiment is: rolling a die, spinning a spinner, the number of times someone will lose before they win (or the converse), the number of rooms in a house, or whatever. Since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
What are examples of mathematical probabilities?
Here are some:
- If you have a bag of 10 marbles, 6 of which are red, the chance of taking out a red one at random is 3/5
- If you roll a dice, the chance of getting an even number is 1/2
- If you take the top card of a shuffled deck the chance of it being a diamond is 1/4. The chance of it being a king is 1/13
Does variance provide more information than standard deviation?
No. Because standard deviation is simply the square root of the variance, their information content is exactly the same.
What are the measurements that fall beyond three standard deviations from the mean?
They are observations with a low likelihood of occurrence. They may be called outliers but there is no agreed definition for outliers.
What is the calulated value of the standard deviation of returns for -22.0 -2.0 20.0 35.0 and 50.0?
It is 28.73
If you go back 34 generations you have 17 billion direct ancestors. How is this possible?
It is not possible. There have never been half that number of people alive at any one time.
This calculation is a crude demonstration, among other things, that everyone is related, however distantly, to everyone else.
The mathematical probability of getting heads is 0.5. 70 heads out of 100 tosses represents a probability of 0.7 which is 40% larger.
Total number of woman over total number of people
So for this problem it's 23/41
What is the probabiltiy of landing on a number with 3 factors on a spinner with 8 possible outcomes?
The answer will depend on what the 8 numbers on the spinner are!
There are 5 possible answers. The question needs to be more specific.
1.6
Why cant a negative fraction represent a probability?
Probability is a ratio of two counts: both of which MUST be positive. Their ratio cannot be negative.
How many diamond cards in a deck of cards?
same amount as any other suit.1-9.then jack king and queen.equalling 13 diamonds in a deck of cards.
The maximum likelihood estimate, possibly.
What is a group of happenings that does not affect the probability of the occurrence of the others?
independent
What is one important consequence of reducing standard error of the mean?
Estimates of the mean are then more reliable.
What your probability of getting a head in a single toss of a coin?
total outcome in single toss={H,T}
u want 1 head
probability of getting 1 head= 1/2=0.5
