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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 odds of a left-handed person meeting another left-handed person?
There are plenty of left handed people, so if you are left handed you'll probably meet another left handed person at some point.
Approximately 10% of the population of the United States is left-handed. That means that of every encounter between two people, one in ten will include at least on left-handed person. To find out how many will be between two left-handed people, you multiply 10% by 10%, you get 1%, or one in 100, so the odds of a left-handed person meeting another left-handed person are 1 in 100.
Your question doesn't specify "meeting for the first time"; encountering someone you already know changes things a little, since left-handedness can run in families. Also, those odds don't include meetings with more than two people, or research into facts such as there being left-handed conventions, or left-handed baseball pitchers tending to know one another. That's probably not a big deal, though, and there may be sports or occupations that favor right-handers, which balance things out.
What is the greatest possible decimal greater than 0 but lesser than 1?
0.999...
The nines would repeat to infinity.
Were the boys distressed that they had left the spade and pick downstairs?
they were stupid TEHE:)*/*
Data collection typically involves several stages:
- Planning: Define the objectives, identify the data needed, and select appropriate methods for collection.
- Design: Develop a detailed plan that includes tools and instruments for collecting data, such as surveys, interviews, or observations.
- Execution: Implement the data collection process, ensuring that data is gathered systematically and ethically.
- Review: Analyze and validate the collected data to ensure accuracy and reliability before proceeding with further analysis.
What are the Chances of getting a boy or a girl?
About 50/50. Slightly more boys are conceived than girls but slightly more girls make it to term than boys.
Probablity of an event occurring to the probablity that it will not occor?
Let p = probability the event will occur; and q = probability the event will not occur.
The relationship is p=1-q or q=1-p.
A typical statement in the field is the desire to "have a 95 percent probability of meeting time and cost estimates."
The probability of drawing two blue cards froma box with 3 blue cards and 3 white cards, with replacement, is 1 in 4, or 0.25.
The probability of drawing one blue card is 0.5, so the probability of drawing two is 0.5 squared, or 0.25.
It is z = -0.5244
Given mean of 0 and deviation of 1 what is the probability that Z is greater than -1.96?
The probability of Z from minus infinity to -1.96 is 0.025. Therefore the probability of Z greater than -1.96 is 1 - 0.025 or 0.975 or 97.5%.
What is the probability of picking a card between 3 and 6 out of a standard deck of playing cards?
As phrased, this is a bit of a trick question. Each of 4 suits in a standard deck contains 2 cards between 3 and 6 (the 4 and 5 cards), for a total of 8 cards between 3 and 6. Thus the probability of any pick being a 4 or 5 is 8 out of 52, or 2:13.
If the questioner actually meant to ask about cards "from 3 to 6", which would include the 3 and 6, the odds double to 16 out of 52, or 4:13.
What is the probability of rolling 2 threes in a row with a single six sided die?
The probability of rolling a 3 with a standard die is 1 in 6. The probability of doing that two times in a row is 1 in 6 squared, or 1 in 36.
- Mathematicians do maths for fun. They dream up new abstract logical systems, and investigate the properties of those systems. They then publish their results, which are read by (mostly) other mathematicians. One hears talk of "advancing the art" and "intellectual challenge", but really fun is the best overall description.
- The properties of an abstract mathematical system may or may not correspond to the properties of anything in the concrete world that we live in. Many of them don't.* However, professional thieves physicists and others are always on the lookout for some bit of maths which they can walk off with and use to make sense of some of their experimental data, or describe their latest theory.
- Maths is used by scientists (physicists especially), engineers of all kinds, bankers, stock-brokers, statisticians, soldiers (artillerymen in particular), accountants, poker players and code-breakers. A list of what all these people do with it would need a small book.
* as far as we know ! A part of maths called "group theory" was thought to be just another fun thing for mathematicians to play with. Then in the 1930s (and in great secrecy) it was used to break the German "Enigma" code machine. This had an enormous impact on WW2. Group theory is now much used to make sense of elementary particles.
thats what math is used for
How many times is it 6.53 in a day?
It is 6:53 two times each day. Once at 6:53 AM, and once at 6:53 PM.
What is evaluate each expression?
That means to look at each statement separately and evaluate after each step.
What is an idiom for If something goes wrong it probably will?
Murphy's Law: If something CAN go wrong, it WILL go wrong (and usually at the worst possible time).
usually seen WITHOUT the part in parentheses
Marble comes in every color imaginable. It can be a chalk-white to a onyx-black. It can be calico colored as well from every color including different colored cyrstals to add to the mix. Marble for exterior use is normally white.
The first part of the question is false, and the correct answer is that an even function of minus x equals the function positive x. This follows from the very definition of an even function. The second part of the question is false, because the truth is that the composite function results from taking the function of x within the function g.
What are the odds of rolling a double two with 2 dice?
Each cube can land in 6 different ways.
The chance of a '2' on the first cube = 1/6 .
The chance of a '2' on the second cube = 1/6 .
The chance of both of them on the same roll = (1/6) x (1/6) = 1/36 = 2 7/9 percent
How many different ways can you arrange the numbers 1 to 20?
You can arrange them in (20 x 19 x 18 x 17 x 16 x ..... 4 x 3 x 2) ways.
That number is called "20 factorial", and written " 20! ".
It's a big number ... bigger than my calculator can show exactly.
Rounded to the nearest billion, it's
2,432,902,008,000,000,000
