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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 does it mean if a number has a probability of 1?
If a number has a probability of 1 it means it is certain to occur.
What is the chance of selecting a red queen from a pack of 52 cards?
There are 2 red queens, assuming a randomly shuffled deck the chances of any one card being selected is 1 in 52, therefore the chance of either of the red queens being selected is 2 in 52. This is normally shown as 1 in 26.
What is the possible outcome of tossing 10 coins?
There are 1024 different outcomes, so too many to list.
How are the experimental and theoretical probabilities the same?
They are both measures of the probability of an event occurring.
1/7
If a mother has a son. What is the probability that she will have a girl?
It is not possible to say because the children's genders are not independent.
It is 0.3722, approx.
It is 0.3722, approx.
It is 0.3722, approx.
It is 0.3722, approx.
2 in 7.
What is the fundamental concept for probability and statistics?
The fundamental concept is that there are many processes in the world that contain a random element. If that were not the case, everything would be deterministic and there would be no need for probability of statistics.
What is the probability of rolling six dice all at once and getting 1 2 3 4 5 and 6?
It is 6!/66 = 720/66 = 0.0154 approx.
What is the probability of getting 2 prime nos from 1 to 20?
In the sample space [1,20], there are 8 prime numbers, [2,3,5,7,11,13,17,19]. The probability, then, of randomly choosing a prime number in the sample space [1,20] is (8 in 20), or (2 in 5), or 0.4. The probability of choosing two of them is (8 in 20) times (7 in 19) which is (56 in 1064) or (7 in 133) or about 0.05263.
What is an example of experimental probability?
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Experimental Probability: The number of times the outcome occurs compared to the total number of trials.
example: number of favorable outcomes over total number of trials.
Amelynn is flipping a coin. She finished the task one time, then did it again. Here are her results: heads: three times and tails: seven times. What is the experimental probability of the coin landing on heads?
Answer: 3/10
Explanation: Amelynn flipped the coin a total of 10 times, getting heads 3 times. Therefore, the answer is: 3/10.
Head lice, or pediculosis capitis, is caused by an infestation of head lice, peduculis humanus capitis. It is spread by direct head to head contact with an infected person. Transmission by bedding, clothing, or headgear is possible, though less common.
What is the probability of rolling a whole number on one roll of a number cube?
Every number on a number cube is a whole number. (A whole number is a number without a fraction or decimal) So the probability of rolling a whole number on a number cube one time would be 6/6 or 1.
The probability is 6/36 = 1/6.
testcross
Probability of getting both head and tail simultaneously when a coin is tossed?
The probability is 50-50.
What is the probability of rolling a standard number cube and it landing on an even number 3 times?
It should be 1/8 3/6=1/2 roll 1 1/2 roll 2 1/2 roll 3 1/2 1/2 times 1/2 times 1/2 is 1/8
How can the probability of a coin landing on heads or tails be useful in real life?
There are many event, in real life, which have binary outcomes (A or B0 which are equally likely. In studying such situations the coin probabilities are obvious analogies.
How many ways you can write 3 letters on a tag using each of the letters abcd with repetition?
4*4*4 = 64 ways.
What is a naturally occurring event that threatens people and their activites?
- earthquake
- mudslide
- volcano
- hurricane
- tornado
- flood
- torrential rain
- epidemic
- pandemic
- lightning strike
- infestations of locusts, mice, rats or other creatures
