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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
In ordered pair the second number is always the value of y?
Yes and no.
In two-dimensional Cartesian coordinates, the answer is usually yes. So the point (4,7) has x value 4 and y value 7.
But there are other uses for ordered pairs. For example in polar coordinates a point is specified by an ordered pair (r, theta), and the second number is an angle. You need to know what context you are working in.
It means any substance that readily absorbs moisture, like from the atmosphere.
i.e wool goes by this term therefore has thermal qualities when laid as a carpet, in winter it absorbs the moist cold air leaving the atmospere in the room warmer and in summer it actually absorbs up to 30% of the humidity thus leaving it cooler.
to be pessemistic is to have a negative expectation of future outcomes To be pessimistic basically means that you'll always expect a bad (or the worst) outcome out of every situation....You don't hope for much because you find that something can always go wrong...^^
How do you get the negative of 4 to the 7th power?
Negative numbers to even powers will be positive, negative numbers to odd powers will be negative. The answer is -16,384.
What is the formula in finding the frequency distribution?
The frequency distribution usually refers to empirical measurement and there is no formula for finding it. You simply count the number of times an observation falls within a given range.
There are 9 choices for the first digit, 8 for the second, 7 for the third, and 6 for the last.
So there are 9x8x7x6=3024 "permutations"
That means the order does matter.
If the order does not matter, divide that number by 4!=4x3x2x1
9C4 is 126
What is the relation between mean median?
mean = all the numbers added together, divided by the number of numbers
median = the middle number - get the numbers in chronological ( smallest 2 biggest) order, then
if its odd number of numbers, its the middle one
if its even number of numbers, then its the middle two, added together divided by two
What is the median of 9-6-5-0-6-11-10?
If a set of numbers is arranged in ascending or descending order the median is the value which lies halfway along the series.
9-6-5-0-6-11-10 when placed in ascending order becomes 0-5-6-6-9-10-11.
The median is therefore 6.
Note : When there are an even number of values the median is the mean of the middle two values.
A band-limited signal is one in which the Fourier transform is zero above a certain frequency. In other words it's a signal that ahas a finite frequency content. The simplest case is a pure sinusoidal signal, whose Fourier transform consists of a delta function centred on the frequency of the signal. A band-limited signal can be reconstructed exactly if it is sampled at at more than twice the maximum frequency present in the signal.
A time-limited signal is a signal that is zero above a finite. An example of this would be a short pulse.
The reason a signal cannot be both band-limited or time-limited is due to their relationship via the Fourier transform. One can show it is impossible for the Fourier transform of a signal with compact support ie either time or band-limited, to also have compact support. A time-limited signal must have a continuous frequency spectrum existing over all possible frequencies and a band-limited signal can only arise from signal existing for all time. Note this indicates in reality it is impossible to have a truly band-limited signal as it would take infinite time to transmit, but it is nonetheless a useful concept and we can produce nearly band-limited signal to a high degree of accuracy.
What is the different between evo x and evo 10?
they are the same cars!! its just the x stands for the roman numeral 10.
What is saliva sample testing?
Saliva sample testing is a technique used to collect samples of a person's saliva, or spit, to check for or monitor certain drugs, hormones (chemical messengers from one cell or group of cells to another), antibodies
a scale
Project of mathematics in daily life?
When you buy a car, follow a recipe, or decorate your home, you're using math principles. People have been using these same principles for thousands of years, across countries and continents. Whether you're sailing a boat off the coast of Japan or building a house in Peru, you're using math to get things done.
How can math be so universal? First, human beings didn't invent math concepts; we discovered them. Also, the language of math is numbers, not English or German or Russian. If we are well versed in this language of numbers, it can help us make important decisions and perform everyday tasks. Math can help us to shop wisely, buy the right insurance, remodel a home within a budget, understand population growth, or even bet on the horse with the best chance of winning the race.
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What does correlation does not mean causation mean?
People with bigger feet have higher intelligence, and people with smaller feet have lower intelligence. In other words, foot size is correlated with intelligence.
However, it's clear that if I could have made my feet bigger it would not have made me more intelligent. In other words, in increase in foot size is not a cause of greater intelligence.
That's what 'correlation does not imply causation' means.
