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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
Which tree diagram shows all the possible outcomes for 2 coin flips?
The tree in which the first set of branches are H and T and then, from each of those nodes, there is a pair of branches which are H and T.
If it has similar characteristics as the population the sample is termed?
It is called a representative sample.
If you spin this spinner 36 times how many times would you expect it to land on 2?
The answer depends on the number of sides on the spinner and how they are numbered.
26.5
It is 67%.
If you roll a number Cube twice what is the probability of rolling a even number than an odd number?
50 percent
What is the probability of being dealt 4 aces from a standard 52 card deck?
The probability, if the cards are dealt often enough, is 1.
On a single deal, the prob is 3.69379*10^-6
9/11
When A spinner is divided into 10 equal sections numbered 1 through 10. Which 2 events are disjoint?
Spinning a number less than 4 and spinning at 6
There are 12 possible outcomes.
There are many countries which use a penny as a minor unit of currency - including the US where it is not really a penny, but a cent! So it is necessary to know
- which country's currency the question is about,
- how many 1 penny coins from 1980, and other years are in the bag.
There is no way to make a sensible estimate without this information.
If the balls are selected at random, then the probability is 12/95.
What is chapter 2 about in shadow spinner?
Shahrazad is the Sultan’s current wife. When the Sultan’s first wife betrayed him and took a lover, he had them both killed. Ever since then, he believes that all women are betrayers. He marries a new woman each night and kills her the next morning. This continues until Shahrazad, the daughter of the Sultan’s vizier, volunteers to be the Sultan’s next wife. On the night they marry, she asks him if she could tell one last story to her younger sister before dawn. The Sultan agrees, and Shahrazad tells her sister Dunyazad an exciting tale, stopping at a thrilling point as dawn arrives. The Sultan allows her to live another day so that he can hear the rest of the story. This continues for two-and-a-half years.
In the Standard Normal Distribution 2.5 of the data lies above the standardized value of z?
No, they do not.
Assuming the chances of having a boy and having a girl are equal (50/50), there are 4 possible outcomes from having 2 children. BOY-BOY, or GIRL-GIRL, or BOY-GIRL, or GIRL-BOY. Since each outcome is of equal probability it means there's a 25% chance the first will be a girl and the second will be a boy.
Since the probability is 1/4, the number of times this will happen will likely be close to 68 divided by 4.
I dont know
What is the probability of drawing a club and a 9 from a deck of 52 playing cards?
The answer depends on whether or not the card is drawn randomly and also, whether or not the card drawn in the first attempt is replace.
What is the probability that a Monday is the birthday of a person?
Since there are seven days of the week, and there is no particular reason why more people would be born on one day of the week than on any other, the probability (for a randomly chosen person) is 1/7.
