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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.

36,756 Questions

What is the biggest nine digit number?

The biggest nine digit number would consist fully of '9's: 999,999,999

What does 10.5 represent mean mode range or median?

It is not possible to tell without more information. As it is, it could be any of them.

Explain how can you plot favorite colors of a sixth-grade class on a line plot?

There are several answers which suggest this is simple but, as far as I can see, it is not. The height of the line must be the number of pupils who pick a particular colour but what about the "horizontal" axis. Should the order be red, blue, green? or red, green, blue? And why? Is the distance between red and blue the same as the distance between blue and green? Again, why - or why not? If you restrict yourself to the electromagnetic spectrum for visible light (rainbow colours), where would black and white and brown and purple go?

The three primary colours (red, green and blue) can be used to generate other colours and so these three components can be used as "coordinates" to define any basic colour. But even this is not enough to distinguish between red and pink (=red+white). To do that you would need to add three more dimensions - hue, saturation, luminance.

In the first case you could plot the information as a surface (not a line) in 4-dimensional space where the 3 independent variables are the amount or red, blue and green in the colour and the dependent variable is the pupil count. In the second case, you need a 7-dimensional space! Easy? I think not!

For an example of the RGB combinations, select format -> font -> font colour in Word, then select more colours and then custom. The default there is the RGB combination. The alternative is HSL.

What is the probability of getting an a from Alabama?

There are four a's in ALABAMA. The probability of choosing an a from a random draw of those seven letters is 4 in 7, or about 0.5714.

If you are talking about getting a grade of A from a school in Alabama, that is entirely up to you and to how well you apply yourself.

How many 5 digit numbers can be made only using the numbers 1 2 3 4 5 with out repeating a number twice example 12345 12354 12435?

The first number can be selected 5 ways, the second 4 ways, the third three ways, the fourth two ways and the fifth one way so total number of ways is

5 x 4 x 3 x 2 x 1 = 120 ways

Find the standard deviation for the following data: 15, 18, 21, 22, 26, 28, 31, 39?

The numbers posted are multiples of 3. In the question, you will find that if you look closely, you can find that some of the numbers are 2 numbers away from the original number

What is the an estimate of a skateboard?

If you are a beginner I would not spend over $50. Intermediate to advanced you can expect $60 to $120. You can find top quality complete skateboards for around $80 at any local skateshop. Try Ebay, they sell alot of pro grade skateboards for wholesale prices -- Beginner : $20 - $40 (Toy store or a 'Mart") Intermediate: $40 - $80 (Toy store or a 'Mart" or a Sporting goods store) Expierienced: $80 - $120(Sporting goods store, skate shop) Pro Setup: $120 - $160 (skate shops, manufacturers direct) Custom pro setup: $160 - $???(I've seen customs over $500.)(Manufacturers direct) - VooDoo 13 -

How do you convert a number to a percentage?

If you only have ONE number, then it's always 100%

Percentages are generally used to compare one number to another.

So to make a percentage you need two.

Like 3 out of 12 is 25%

Going from 12 to 18 is 150%

Did pascal die before completing the pascal triangle?

Yes and no. See related link. The triangle methodology was employed in 1653 by Pascal, but not published until 1665. Pascal died in 1662.

Why you use sample and hold?

The purpose of this circuit is to hold the analogue value steady for a short time while the converter or other following system performs some operation that takes a little time.

Example of two system of measurement?

There is the metric system and the something system i cant remember im only 7 Metric & Imperial. Metric system uses multiples of 10 and has units such as Kilograms, Meters and Litres etc. The Imperial system has units which build up to multiple units in unusual ways. For example 12 inches make a Foot. 3 Feet make 1 Yard and 1760 Yards make 1 Mile. 16 ounces make 1 Pound. 8 Pints make 1 Gallon etc

What events happen in world war1?

Germany, Italy and Austria -Hungary joined up 2 make a team and so did England, Russia and France - they had a war and The Britais team one

What does paloelithic mean?

Suspect the questioner means "paleolithic" which means relating to the Stone Age period (750,000 years ago to 15,000 years ago approx). Paleolithic designates the prehistoric era known as the stone age.