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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 are the z score boundaries for the middle of 50 percent of the distribution?
It is -0.6745 to 0.6745
When a card is selected from a deck what is the probability of getting a heart?
There are an equal number of cards for each suit (13 for each), and 52 cards in a deck. Therefore, your odds of selecting one card of any specific suit will always be 13 to 52, or 1 in 4 (a 25% chance).
What is the probability of getting the sum 4 with two dice?
There are 36 possible outcomes but the only ones that produce 4 are 2,2 1,3 and 3,1. Hence the probability is 3 in 36 (or 1 in 12).
What is the definition of distributive proberty?
"Proberty" is not a word. You're looking for "distributive property."
The distributive property says that x(a + b) = xa + xb. (Multiplying the sum of two numbers by a third number is the same as summing the products of those two numbers multiplied individually by the third number.)
What does low osmotic fragility means?
Osmotic fragility usually (unless otherwise mentioned) refers to the ease with which Red Blood Cells (RBCs) undergo lysis in a hypotonic solution.
Before knowing what 'low osmotic fragility' means, one should know the concept of osmotic fragility. Different parameters, some of them related to the RBC and some of the extracellular environment have an effect on osmotic fragility.
Low osmotic fragility means that the RBCs have a resistance against undergoing lysis when suspended in solutions which are hypotonic. They undergo lysis only if the solution is extremely hypotonic.
In contrast, high osmotic fragility refers to the tendency of the RBCs to lyse even if the solution in which they are suspended in is mildly hypotonic.
As an example for low osmotic fragility would be thalassemia.
And as an example for high osmotic fragility, spherocytosis (a hereditary condition where the RBCs lose their usual biconcave structure and become spherical) causes increased osmotic fragility. i.e, It very easily lyses even at solutions which are mildly hypotonic...
p.s
Another interesting point to note is that in sickle cell anemia, the RBCs show increased mechanical fragility but decreased osmotic fragility. Elucidated by the fact that post-splenectomy the RBC lifespan increases.
What is the Definition of precipitation chance?
Definition: The probability of precipitation in a weather forecast is an estimate of the chance of a measurable amount of rain or snow falling anywhere in a given forecast region over the forecast period. Probabilities are given in 10 percent increments.
Ref: http://canadaonline.about.com/cs/weather/g/pop.htm
UNDERSTANDING POP (CHANCE OF PRECIPITATION)
POP is the probability of any particular point location within a forecast area receiving measurable precipitation in a given time period. POP is determined by two parameters: The probability that any precipitation will occur in forecast area AND predicted areal coverage of precipitation if precipitation does occur. Thus, areal coverage is just one aspect of POP. The chance that any measurable precipitation will occur in the first place within the forecast area must also be considered. When referring to POP it is most accurate to say, "There is a ___% POP that any particular measurement station in the viewing area will get precipitation". For example, when averaged over many 30% POP days, a particular station should have precipitation 30% of the time if the forecaster or computer model is accurate.
Suppose during the course of a year that a Dallas measurement station has a 30% POP on 100 individual days. If the POP prediction is fairly accurate over the long term, it should have precipitated at the Dallas station on about 30 of those days. Thus, think of POP in terms of a long term average prediction. All to often, people assume a 20% chance of rain means 20% of forecast area will get rain on that one day. This is often not the case for any one day. Often no precipitation occurs at all in the forecast area on days with a 20% POP since one component of POP is the chance that any precipitation will develop.
Ref: http://www.theweatherprediction.com/habyhints/284/
Probability of Precipitation
A Probability of Precipitation or POP is a formal measure of the likelihood of precipitation that is often published from weather forecasting models.
In U.S. weather forecasting, POP is the probability that more than 1/100th of an inch of precipitation will fall in a single spot, averaged over the forecast area.[1] For instance, if there is a 100% probability of rain covering one side of a city, and a 0% probability of rain on the other side of the city, the POP would be 50%. A 50% chance of a rainstorm covering the entire city would also lead to a POP of 50%.
Note that the POP measure is meaningless unless it is associated with a period of time. U.S. forecasts commonly use POP defined over 12-hour periods (POP12), though 6-hour periods (POP6) and other measures are also published.
The mathematical definition of Probability of Precipitation is defined as:
PoP = CxA[2]
C = the confidence that precipitation will occur somewhere in the forecast area.
A = the percent of the area that will receive measurable precipitation, if it occurs at all.
For example; a forecaster may be 40% confident that under the current weather conditions that precipitation will occur, and that should rain happen to occur it will happen over 80% of the area. This results in a PoP of 32% ((0.4x0.8)x100 = 32%)
A coin is flipped three times what would the elements in the event of getting two heads be?
They are
HHT
HTH and
THH
The effects that a policy has on those that reside inside a country or nation.
What is a sentence for probably?
you probably already know the answer
This is probably one of the toughest questions I've had all day.
The mother will probably punish her child for lying to her.
this is probably the lamest question ever
you should know probably know what probably means
people probably think you're weird
What is the probable cause of cicatrices on the skin?
These are the result of wounds. Please see the wikipedia article for more information.
What can hide red veins on your face?
i noticed i got red veins on my face and have been having really bad headaches and faint every few days what does that mean?
First ticket can be any of 40, second any of 39, third any of 38 and fourth any of 37 so 40 x 39 x 38 x 37 different ways which is 2,193,360.
"OSPF detects changes in the topology, such as link failures, very quickly and converges on a new loop-free routing structure within seconds. It computes the shortest path tree for each route using a method based on Dijkstra's algorithm, a shortest path first algorithm."
