The difference between the observed points and the regression line points is equal to the correlation.
The strength and direction of a relationship between two or more variables are described by the statistical measure of correlation, which is given as a number. However, a correlation between two variables does not necessarily imply that a change in one variable is the reason for a change in the values of the other.
Regression expresses the relationship as an equation, whereas correlation assesses the strength of the linear link between two variables. The square of the correlation coefficient, also known as Pearson's r, between the observed and predicted values in a regression is sometimes referred to as R2.
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Answer:
Explanation:
The total distance is how far you walk from the starting point.
Distance through west = 18.0m
Distance through north = 25.0m
Total distance covered = 18.0+25.0m
Total distance covered = 43.0m
This means that I am 43.0m from the starting point
Displacement is the distance covered in a specified direction. The displacement will be gotten using the Pythagoras theorem as shown:
The direction of your displacement is 30.81m
Direction is gotten according to the formula;
<em>Note that the direction to the west is negative, that is why the x is -18.0m</em>
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A liquid is a phase of a substance that is characterized by being flowing and has no shape. The molecules of this substance are far apart but much closer than the particles in a gas. Plasma is a state of a substance that consists of ionized gas. So, it in the phase of a gas and has a charge. We can therefore distinguish the two by checking which substance has a charge.
