Write the equation of the line that passes through the given points. Express the equation in slopeintercept form or in the form of x a or y b. (4, 2) and (2, 3)
Measures of Variation Thursday, August 22:05 PM Range, Standard Deviation, and Variance We'll be focusing on the ones in bold. Range is the max - min, it is difficult to interpret on it's own A lot of statisticians use standard deviation, which is a measure of deviation from the mean. It is calculated as follows Test Score x - x bar (x - x bar)^2 previous number/(n-1) (previous #)^(1/2) 70 70 - 70.3 (….)^2 71 71 - 70.3 72 72 - 70.3 70 70 - 70.3 69 69 - 70.3 70 70 - 70.3 **If you're given the formula to compute the standard deviation with the computational formula, pay attention to the x^ 2 INSIDE the parentheses and the x then the square outside of it. Variance is the standard deviation squared. S
