If the question is about a scatter plot, the the data points will be not be located on a straight line but will be displaced by a random element. Connecting the points will give a zigzag line which will fit all the data point exactly but will be of little use in terms of explanatory or predictive value. A smooth line will.
A line of best fit emphasizes the overall trend shown by all the data taken as a whole whereas if you just "connect the dots", the lines could be all over the place.
They are the x and y coordinates that are plotted on the Cartesian plane.
By plotting the points, any point that is not roughly in line with the other points would not fit in with the overall pattern: ........................................ ..|..................................... ..|...........................*....... ..|.......#..............*............ Clearly the point marked # does not fit in with the ..|.........................*.......... general pattern of the points marked * ..|................*................... ..|...................*................ ..|..............*..................... ..|............*....................... ..|......*............................. ..------------------------------.. ........................................
It is not true to say that you should automatically draw a smooth line. It depends on what you are attempting to do. A smooth line may be a good indicator of a trend but such a line is useless if you want to find out whether or not there is any periodicity in the data. For the latter you must join the data points and look for periodic patterns.
If the variables are something continuous, then you should connect the points. For example, if it is your height and weight then since those variables are continuous it is necessary to connect the points plotted on the coordinate graph.
A line of best fit emphasizes the overall trend shown by all the data taken as a whole whereas if you just "connect the dots", the lines could be all over the place.
If you want to draw a good graph, draw a smooth curve. If you just draw straight lines connecting the points, depending on which points you pick, you could get a really inaccurate graph. So, always plot a lot of points before drawing a line, and draw a smooth line!
They are the x and y coordinates that are plotted on the Cartesian plane.
By plotting the points, any point that is not roughly in line with the other points would not fit in with the overall pattern: ........................................ ..|..................................... ..|...........................*....... ..|.......#..............*............ Clearly the point marked # does not fit in with the ..|.........................*.......... general pattern of the points marked * ..|................*................... ..|...................*................ ..|..............*..................... ..|............*....................... ..|......*............................. ..------------------------------.. ........................................
It is not true to say that you should automatically draw a smooth line. It depends on what you are attempting to do. A smooth line may be a good indicator of a trend but such a line is useless if you want to find out whether or not there is any periodicity in the data. For the latter you must join the data points and look for periodic patterns.
If the variables are something continuous, then you should connect the points. For example, if it is your height and weight then since those variables are continuous it is necessary to connect the points plotted on the coordinate graph.
A discussion reflects on the overall themes and ideas of subject. During analysis, the general concepts are broken down into smaller points and examined one by one. This can include agreeing or refuting the basis of the points.
Its called a trend.
There is no such thing as a general pattern. Depending on the variables and the relationship between them, you can have points all over the plot, exactly on a straight line or a curve, or close to such a line or curve.
Contour lines connect points with the same what?
Contour lines connect points of equal elevation while isobars connect points of equal pressure
no but the they are the points that connect the sides