Question

Not handwriting answer, please

In a word document, please answer the following questions:

Course Introduction of Biostatistics

Define the following terms:
correlation coefficient
scatter plot
bivariate relationship
Provide an example where the outlier is more important to the research than the other observations?
Identify when to use Spearman’s rho.

Answer 1

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Answer :-

(Q) 1.

(a) correlation coefficient :-

The connection coefficient is a factual measure that computes the quality of the connection between the overall developments of the two factors. The scope of qualities for the connection coefficient limited by 1.0 on a flat out esteem premise or between - 1.0 to 1.0. In the event that the connection coefficient is more noteworthy than 1.0 or not exactly - 1.0, the relationship estimation is off base. A connection of - 1.0 demonstrates an ideal negative relationship, while a connection of 1.0 demonstrates an ideal positive relationship. A connection of 0.0 shows zero or no connection between the development of the two factors.

Source: investopedia.

(b) scatter plot :-

It is a kind of plot or scientific graph utilizing Cartesian directions to show esteems for regularly two factors for an arrangement of information. The information are shown as an accumulation of focuses, each having the estimation of one variable deciding the situation on the level hub and the estimation of the other variable deciding the situation on the vertical pivot.

Source: wikipedia

(c) bivariate relationship :-

It is the easiest types of factual examination which includes the investigation of two factors to determine the experimental connection between them.

Source: wikipedia

(Q) 3 .

Spearman's rho :- This is an inferential test made by Charles Spearman (left). It is otherwise called "Spearman's Rank" and is some of the time spoken to by the Greek letter Rho (r). It is utilized when:

:- You have a trial of connections (relationship) of two autonomous factors

:- The information is in any event ordinal level*

(* it's anything but difficult to turn interim/proportion level information into ordinal information: you simply put the scores into rank request)

The Edexcel exam may get some information about the propriety of the Spearman's Rho test – when you would utilize it. You could likewise be requested to figure the test. The condition and tables are given at the front of the exam booklet.

On the off chance that you are given an investigation looking at least two unique conditions, utilize .