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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 embankment mean?

a long artificial mount made to form the limits and support of a river or a road or railway

What does introspective mean?

Introspective is when you try to look deep into your thoughts or feelings- try to read yourself and understand who you are reflect on your actions, behavior and understanding of yourself.

What is the difference between numeric and non-numeric keys in RDBMS?

Numeric means a number is used. For a key, that would usually be an integer. Non-numeric keys can include any symbols (i.e., text). In theory, you could also use other specialized data types, for example, dates. Check the data types available by a specific RDBMS; details may vary. Almost any data type can be used for a key; although variable-length data types such as BLOB are either not supported or not practical to use.

What is the difference between functions and variables?

Variables define a certain value, such as an integer, string, boolean value, etc. Functions are defined to run a certain task, and may or may not return a value. You can have a function that calculates the sum of two numbers and returns the sum once calculated.

What is a representative sample important in a statistical study?

Suppose you wanted to know the average income in Canada but for your own convenience you decided to ask for income information from people who lived in cities and towns with airports so that you could fly to your destinations. The people in places like these often have higher incomes and would not form a representative sample of the people of Canada. In order to obtain a good estimate of average income you would need to find a way of ensuring that people of all income levels would have known probabilities of appearing in your sample.

How many different combination's are in the number's 1 - 59?

Only one, since the order of the numbers does not matter in a combination.

What does yeehaw mean?

Country expression of excitement, similar to yippee!, oh boy!, hurray!

Advantage and disadvantage of NPV what is the advantage and disadvantage of Net Present Value Method?

Advantages: a. It will give the correct decision advice assuming a perfect capital market. It will also give correct ranking for mutually exclusive projects. b. NPV gives an absolute value. c. NPV allows for the time value fo the cash flows. Disadvantages: a. It is very difficult to identify the correct discount rate. b. NPV as method of investment appraisal requires the decision criteria to be specified before the appraisal can be undertaken.

What is an example of a binomial?

y = 2x + 10
Example of a Binomial: (4x+3y)
a bionomal is an algebra two question an example would be 6b+5b=76l
b. 2x + y

What is sameer mean?

Sameer originated from Sanskrit and now is a part of Hindi meaning gust of wind, gentle breeze.

Sameer/Samir is also a word in Arabic meaning Jovial companion.

If you have 10 numbers 0 through 9 only can use 4 at a time like this 2579 and you can also use a number more than once like this 4676 how many different combos are there?

In this problem, think of it as being able to select 0-9 for each of the 4 numbers. So, you can select 10*10*10*10 = 10,000 combinations. If you could not use a number twice, it would be 10*9*8*7.