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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
How does a tree diagram give you the denominator of the fraction from of a probability?
The number of objects in the furthest right column of the tree will be your denominator.
What is the best definition of a sample space of a probability event?
It is the set of all possible outcomes.
What is the probability of drawing an ace in a standard deck of cards?
The probability of drawing an Ace in a standard deck of 52 cards is 4 in 52, or 1 in 13, or about 0.07692.
How do African tribes use constellations to help them with farming?
The location of zodiacal constellations, at a fixed time in the evening (or night) depends on the time of the year. It is, therefore, a calendar that may be used to determine appropriate times for sowing crops, getting ready to harvest and so on.
Do you divide to find the probability?
Yes, you divide the number of expected outcomes by the number of possible outcomes in order to determine probability.
What is the function of osephagus?
the ESOPHAGUS is a tube in the throat which food goes down when you swallow. (swallowing is mostly involuntary because the esophagus is made of smooth muscle, a type of muscle that works without control of the brain.) The food goes down into the stomach. On the top half of the esophagus is a sphincter, as well as on the bottom half. they help close off the esophagus.
Definition of data set in statistics?
A group of related information comprising separate data elements stored, retrieved, or otherwise organized and treated as a unit, i.e., file.The term largely is used in the mainframe community; others use the term file.
In statistics a data set is a collection of data often placed in table form.
It is defined as the positive square root of the mean of the squared deviations from mean. The square of S.D is called variance.
The standard deviation is used as a measure of the variance of a measurement within a group of objects. In essence, it is the average difference between the measurement of any one object and the mean measurement for the group. For example, if the average measured weight of brown bears is 140kg (265lbs) and the standard deviation of weights among brown bears is 5kg (11lbs), then any particular, individual brown bear is likely to weight between 135-145kg (254-276lbs), and very likely to weight between 130-150kg (243-287lbs). It's impossible to know the weight of an individual bear just by looking at the mean weight for all bears, but the standard deviation tells you what range of weights the weight of an individual bear will fall in.
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A probability is a ratio of a fraction in between?
If the outcomes of the trials are equally likely, then (and only then) is it the number of favourable outcomes and the total number of trials.
Is relative frequency similar to the concept of probability?
The relative frequency of of an event is one possible measure of its probability.
No it does not mean that. Remember politicians they all lie
100%. If there are only white socks in the drawer, then no other color will be drawn.
It is regression. Galton coined the term in the course of his study on the heights of parents and their children. His conclusion was that tall parents tended to have tall children and short parents had short children, but that the children's height regressed towards the mean height for the population.
What is the probability of flipping 2 coins and having both show heads?
If both tosses are fair, the probability of that outcome is one in four.
What are allowable probabilities?
A probability must be a real number in the interval [0, 1].
The sum (or integral) of the probabilities over all possible values must be 1.
How do you need to determine what must happen on the way to the goal?
Place tasks in logical sequence, set clear priorities, determine realistic time line.
Rank your goals by importance, determine the importance of each goal, decide the rank of goals that have equal priority, identify your job requirements for a certain period of time (day, week, or month).
What is the probability of having 7 girls in a row?
It depends on the context. In a girls' school, it is pretty close to 1 whereas in a boys' school it will be 0.
What is the function of the Arachnoidea?
The Arachnoidea is a portion of arachnoid matter that covers the brain. There is another Arachnoidea that serves to cover the spinal cord.
