Solve for x. 15x + 6 = 10x + 21 x = -5 x = 5 x = 3 x = 5
1 answer:
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Answer:
b. CHISQ.TEST
Step-by-step explanation:
Notation and previous concepts
A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"
The statistic is given by:
In order to calculate the p value we need to have in count the degrees of freedom , on this case . And we can calculate the p value would be given by:
But the correct comand is given by:
b. CHISQ.TEST(Actual range, Expected range)
We just need to put in one column the Observed values and in other the expectec values.
Answer:
Step-by-step explanation:
Assuming this is a linear equation in the form of , we can first solve for the slope using
, for these points, the slope would be
. Now we plug in the points to get the equation:
plugging in (7,5), we get ×
+
and solving for b, we get b =
therefore, the equation of the line passing through (7,5) and (1,2) is .
hope this helps!