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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

How are the Composite Indexes made?

The government indexes are made by averaging the behavior of the different indicator series that make up each composite series.

What is time series all about?

Answer: it tells the time about

something in different ways

Answer: It's a graph that shows how something changes over time. You may want to check the Wikipedia article "Time series" for more information.

How do you make numerical data?

You can code the data.

For example, male = 1, female = 2.

Or

Strongly Agree = 5

Agree = 4

Neither agree nor disagree = 3

Disagree = 2

Strongly Disagree = 1

What would be a value of p for the approximation to work you thought p can only be between 0 and 1?

If I'm reading in between line corectly if p is 1 that is the approximation. If this did not answer the problem feel free to contact me.

What is the probability of rolling a 1 or a 5 on two dice?

It is 1 - Prob(not rolling a 1 nor a 5 on either die)

(4/6)2 = (2/3)2 = 4/9 = 0.444... recurring.

What is the largest 3-digit number that has the digits 4 and 7?

974.

If you mean the largest one with ONLY the digits 4 and 7, then 774. If it can only contain 7 and 4 but doesn't have to have both, then 777.

What kind of shape that hAVE FOUR sidEs?

Quadrilateral.

Examples -

Rectangle

Square

Parallelogram

Rhombus

Trapezoid (US) = Trapezium (UK)

What is the probability of getting a license plate that has a repeated letter or digit if you live in a state that has one numeral followed by two letters followed by six numerals?

This may not be quite as straightforward as it first seems. In the UK, which has a different letter-number combination, some letters are not used so as to avoid confusion for example O and 0, or I and 1. If that is the case, then the probability of a particular digit is not 1/10.

Also, some letter combinations that spell offensive words are disallowed. The consequence is that not all 26 letters of the alphabet are used and those that are may not be used in the same proportion. This will probably not apply if there are only two letters.