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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 regression analysis and inferential analysis?

Regression Analysis

It is a collection of statistical techniques to understand the relationship among several independent variables and one or more dependent random variables.

Inferential Analysis

It is collection of mathematical techniques to make prediction about unseen large data sets on the basis of a study of available small samples of that data.

Regression analysis is a specific way of performing inferential analysis.

Is a tally chart a graph?

yes it is, your still comparing things so it is considered a graph

How many combinations for 3 numbers?

Three numbers can be arranged in 27 different sequences if repetition

is allowed, and in 6 different sequences if it's not.

What happens if there are two medians?

You add the two numbers and then divide it by two. It basically doing the mean which is adding all the numbers and dividing it by how many numbers there are. I hope this helped!

How many times digit 0 use between 1 to 300?

49 zeros [leading zeros are not used like 001, 002, etc.] This does not include the two zeros in 300 (since the question stated between). So if 300 is included, then 51 zero digits.

What is the median of 58 58 63 69 74 and 80?

After putting them in order, cross out the 'ends' First 58 and 80 Then 58 and 74 You are left with 63 and 69 The median number is 66. The median is the number in the 'middle.'

Difference between cumulative incidence and incidence rate?

example for cumulative incidence(Risk)...... Number of new cases/Population at risk 28 patient in two years/1000 person at risk which means 2.8%

the IR for the same example 14 patient / 1 year

How do i find the mean of fractions?

You can convert them to decimal values and then add them together and divide by the total number of values. Usually, we used a spreadsheet like excel on the computer, but a calculator is also easy to use.

Definition of quantitative Techniques and Name two major divisions in which you con divide these techniques?

Quantitative Techniques are those statistical and operation research techniques which help in the decision making process especially concerning business and industry. These techniques involve the introduction of the elements of quantities i.e. they involve the use of numbers, symbols and other mathematical expressions.

two major divisions in which we can divide these techniques are-

1) Statistical Techniques (or Statistical methods and measures)

2) Programming Techniques (or Operations Research)

Does a change in one variable cause a change in anther variable?

Supplemental: If there are different variables on two sides of an equation, a change in either variable will inevitably change the variable on the other side to make the equation true. Example: A + B = C, where A = 5 and B = 6, C = 12. If A = 7 and B = 6, C changes to 13. As you can see, changing A to 7 from 5 changed C, but not B. The good rule of thumb being, if one side changes, the other side does as well. -Jonathan C. Holcomb _____________________________________________________________________________

I don't know in what context are you talking about.

But if you apply this question to everything you know the anser is NO.

A change in a certain variable does not implies a change in another one.

This does not mean that some variables are not affected by others, but the statement cannot be applied to every variable.

What is the difference between forming a hypothesis and testing a hypothesis?

forming a hypothesis is when you come up with an educated guess.. what you think it may be .

testing a hypothesis is when you're testing to see if someone else's guess is right.

Is majority more than half?

yes majority means more than half of all voters cast