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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 elaine mean?

Old French form of Helen and English form of the Greek 'Helene' meaning "torch".

What is apparent outlier?

I have included a link on outliers. The definition as given in Wikipedia is similar to those in other textbooks: In statistics, an outlier is an observation that is numerically distant from the rest of the data. It is not a rigorous definition, because "numerically distant" adds an element of subjective judgement. Values which are far removed from the typical range (or grouping) of a sample are not necessarily erroneous data. For this reason, the use of adjectives that add some doubt as "apparent" or "possible" to the term outlier is correct. See related link for examples of outliers.

Why use the T score?

T-score is used when you don't have the population standard deviation and must use the sample standard deviation as a substitute.

A pair of dice is rolled What is the problability fo getting a sum of 2?

Assuming you meant a standard pair of dice, only 1 and 1 add to 2, since there are no negatives, and numbers only stretch up to 6, and due to that, there is no 0. Therefore, 1/36 is the probability (probability of rolling a 1, 1/6, probability of rolling a 1, 1/6, 1/6(1/6) = 1/36).

How do you find the median with a Evan set of numbers?

You would answer it like a normal problem if you were doing both even and odd

What is 6000 over 36000 as a percentage?

Expressed as a percentage, 6000/36000 x 100 = 16.6 recurring (that is, 16.6666...) percent.

How many different combinations of seven-digit number are possible that begin with 555 explain the method you used?

There are 10,000 of them.

I used the method of logic, combined with reasoning.

You're only changing the last 4 digits.
With 4 digits, you can count from 0000 to 9999 . . . 10,000 numbers.

What shows how far away a measurement is from the mean or average of the set?

a line of best fit, on a graph you draw the line where it is closest to most points and measure how far it is away from the line.

http://www.bbc.co.uk/schools/gcsebitesize/maths/images/graph_53.gif

Is course evaluation scale nominal or ordinal or ratio or interval?

It is Ordinal:Order the data from smallest to largest or "worst" to "best".Each data value can be compared with another data value.