A few days ago
♥ I Love Lamp

Another question please!?

In math, what is the trend of the data in a graph?

It is asking me to sketch a graph on a piece of paper and describe the trend of the data but I dont know what it is?

Also, what is the correlation coefficient?

This is all so confusing and my teacher doesnt wanna show me because he is biased. Please help because I feel so bad and Im trying my best…

Top 1 Answers
A few days ago
MasterMmmm

Favorite Answer

In probability theory and statistics, correlation, also called correlation coefficient, indicates the strength and direction of a linear relationship between two random variables. In general statistical usage, correlation or co-relation refers to the departure of two variables from independence. In this broad sense there are several coefficients, measuring the degree of correlation, adapted to the nature of data.

A number of different coefficients are used for different situations. The best known is the Pearson product-moment correlation coefficient, which is obtained by dividing the covariance of the two variables by the product of their standard deviations. Despite its name, it was first introduced by Francis Galton.

As to the trend of data in the graph, I believe he simply wants you to tell him if it is moving up or down or just staying level at each point in the graph.

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