Answer:
c. The parameter of interest is μ1-μ2, the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions
Step-by-step explanation:
Of interest is to estimate the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions.
The parameter of interest is the difference. Suppose we have that is the mean sale price of all black cars sold at used car auctions, while is the the mean sale price of all white cars sold at used car auctions. Since the parameter of interest is the difference, it is , and the correct answer is given by option c.
X/3+7
co-efficient=1/3
how?
x/3 is also the same as x(1/3).
Answer:
Let's create this right triangle. We will call it triangle ABC with angle B as the right angle, angle A being the larger of the angles A and C. If the ratio is 5:4, then it is A:C. 5+4 = 9. The measure of the right angle, angle ABC = 90, and 90 divided by 9 is 10. So angle A is 5 * 10 which is 50 degrees, and angle C is 4 * 10 which is 40 degrees. The smallest angle, angle C, is 40 degrees.
Step-by-step explanation:
Answer:
The answer is 1:2
explaination in comment section
Answer:
1) 2(t+1)(t−7)
2) 7 months
Step-by-step explanation: