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Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,755 Questions
What does mean mode range median mean?
I'm not sure of the other three, but I know that mode means the one that appears the most often, so for example, if you saw this number sequence...
4,4,5,5,6,6,6,3,3,1, 6 would be the mode, simply because it appears the most often.
Key fob
What is the definition of elements in regards to math?
Elements can be an element of a set.
Lets say you have a set of numbers like
A{2,3,5,8,45,86,9,1}
B{2,7,0,100}
all those numbers are called elements of that set
2 is an element of set A and B
100 is an element of set B
45 is an element of set A
How do you mathematically find the different combinations of a 9 digit social security number?
For every digit, you multiply the total by the number of possibilities in that one space. So assuming you are only using numbers, that would be 10^9 possibilities. If your pin is using letters, that'd be 26^9. If it's numbers AND letters, 36^9. If it were numbers AND letters and was case sensitive, THAT would skyrocket possibilities to 62^9 (in other words: 13,537,086,500,000,000 combinations). In other words, if you are depositing $, you are quite safe, and if you're trying to steal identities, sucks for you!
How many kilometers are there in 750 feet?
One foot is equal to 0.0003048 kilometres. Therefore, 750 feet is equal to 0.0003048 x 750 = 0.2286 kilometres.
Average of the 2 middle values for an even number of items?
The mathematical term that fits this description is MEDIAN. For example, given the numbers 1, 3, 5, and 8, the median is 4 because the middle two values are 3 and 5, and there is an even number of numbers.
circle graph
What sort of employee compensation statistics does the Bureau of Labor Statistics publish?
wages and benefits--are undertaken that relate to occupations, industries, and areas of the country. An initiative begun in 2000 produces national employment cost indexes, employment cost levels, and employee benefit incidence.
What automatically corrects error?
A registry cleaner can help you correct the errors on your computer.
Well, the equation for slope between two points would be (y1-y2)/(x1-x2). suppose you switched up the x and y values: (y2-y1)/(x2-x1). this equation would still work because the x2 and y2 values are proportional and the x1 and y1 values are preportional. But say you switched up the equation to look like this: (y1-y2)/(x2-x1). neither the x1 and y1 values nor the x2 and y2 values are no longer proportional. using that equation will get you the wrong slope. So overall review:
1.) GOOD (y1-y2)/(x1-x2)
2.) GOOD (y2-y1)/(x2-x1)
3.) BAD (y1-y2)/(x2-x1)
Lets try it out with actual points.
x1 y1 x2 y2
(10,20) (5,10)
1.) GOOD (20-10)/(10-5)= (10)/(5)= 2
2.) GOOD (10-20)/(5-10)= (-10)/(-5)= 2
3.) BAD (20-10)/(5-10)= (10)/(-5)= -2
remember! -a negative number divided by a negative number is a positive number
What is the rule in hypothesis testing?
The rules are as follows:
- the hypothesis and its alternative are clearly spelled out before you look at he data,
- the observations are obtained randomly,
- the test statistic is based only on the observed data,
- you have measures of what the likely values of the test statistic if the [null] hypothesis were true and if it were not,
- you then reject the null hypothesis if the likelihood of obtaining a test statistic which is as or more extreme than observed is smaller than some predetermined (but arbitrary) value. Otherwise you accept the hypothesis.
What does the mathematical term pie mean?
Pi is the Greek letter that stands for the relationship between the diameter of a circle, and the circumference of same. It's about 3.14159 and change.
In other words, the distance AROUND a circle is about three times the distance Across that same circle, to the (edge to edge through the center).
This ratio is Constant, no matter how big the circle.
No one "Invented" Pi - it was "Discovered" because it had always been there.
pi is an irrational number meaning you can take decimals out to infinity and it never ends or repeats: 3.141592653589793238462643383279502884197169399375105820974....
but it is often shortened to 3.14 to find the circumference of a circle.
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What is the largest number of 0 3 4 1 8?
the answer would depend on what you are talking about. The largest number of those is 8. Or if you want to make the largest number it would be 84310
Given the fact that the browsers which we are forced to use cannot even handle superscripts, it is virtually impossible to give a sensible answer here. URLs are prohibited so I cannot give you a link but I recommend you search Wikipedia for Rayleigh Distribution.
