Why is a best fit line used to find slope instead of using the data points?
Because the data points are generally not all in line with each other. If you connect the dots,
from one data point to the next and then to the next, you usually get a zig-zag line of many
segments, where the slopes of the segments are all different and cover a wide range. It would
be impossible to decide what the "real" slope of the data is. The "best fit" line is a line that finds
the pattern buried in the zig-zag data, giving each data point its best share of determining the best
single equation to represent the whole batch of points. That's why it's called "best".
There are many ways, but probably you aren't in a statistics class, but in an algebra class. Step 1 plot all the data points on a coordinate plane graph (x-y graph) Step 2 estimate a line 'close' to points. Step 3 use 2 points ON THE LINE (these do not need to be data points) Step 4 find slope of line using points from step 3 Step 5 use point-slope formula to write the equation.
Suppose you have a sample of n points for two variables: (x1, y1), (x2, y2), ... (xn, yn). Without going into various statistical considerations (which are nonetheless important) you can estimate the slope of the 'best' line that can be used to estimate the values of y from the values of x using for formula given for beta-hat in the wikipedia article for simple linear regression.
Best way to train gags is in cog buildings, because there are plenty of cogs to train gags with. Best with invasion because double points. ( for example if you use a lvl 5 gag when in 5th floor you will normally get 15 points but instead you get 30 which is a good thing. ) Note : Too bad toontown cant extend the points more than 200 points because thats the max points you…
Take the elevation from an upstream point on the river and the elevation from a point downstream on the river. Calculate the difference in the two elevations. Measure the distance between the two points by tracing the path of the river. Divide the difference in the two elevations by the distance between the two points in order to get the slope of the river, or the river gradient.
What best explains how a plot of concentration vs time for a reactant of a chemical reaction can be used to determine the instantaneous rate of a reaction at time equals 300 s?
1) Find time = 300 s on the curve. 2) Draw a tangent line crossing the point at time = 300 s on the curve. 3) Identify two points on the tangent line and use them to find the slope of the line. 4) The slope of the line is the instantaneous reaction rate in M/s. 1) Find time = 150 s on the curve. 2) Draw a line tangent to the point time =…
The best reason for using iron filings instead of an iron nail in a chemical reaction process would be that the filings would take less time to dissolve, because they are already in the smallest solid form they can be in. They are also more likely to have been stored in such a way that they are not contaminated by rust or other pollutants.
What best explains how a plot of concentration vs time for a reactant of a chemical reaction can be used to determine the instantaneous rate of a reaction at time 10 s?
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What best explains how a plot of concentration vs time for a reactant of a chemical reaction can be used to determine the instantaneous rate of a reaction at time equals 10 s?
If you mean slope - y intercept form ... Y = mX + b, where b is the y intercept and m is the slope ... b is a point on the y axis --- 5 becomes the point (5,0). m is a slope best thought of as fraction. 3 becomes 3/1 ... to be used as 'rise' and 'run' ... rise tells how far to go up (if positive) or down (if negative)…