For the independent-measures t test, which of the following describes the pooled variance (whose symbol is )? a weighted average of the two sample variances (weighted by the sample sizes) the variance across all the data values when both samples are pooled together an estimate of the standard distance between the difference in sample means (m₁ – m₂) and the difference in the corresponding population means (μ₁ – μ₂) the difference between the standard deviations of the two samples

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract