Answer:
The correct option is;
A. A set of nine data pairs with a correlation coefficient r = -0.4
Step-by-step explanation:
In statistical analysis, it is important to make use of an adequate sample size in order to arrive at a valid result. An analysis with a very small sample size can provide misleading results
When performing regression analysis it is generally accepted by researchers that each variable should have at least 10 observations.
Therefore, the data set having nine data pairs with a negative correlation of -0.4 will provide the most valid result that can then be used for generalization about the larger statistical population.
Answer:
Supplementary angle equals 180°
Complementary angle equals 360°
Step-by-step explanation:
Conjugate angles are more or less related to complementary and supplementary angles. The sum of the two angles put together equals 360 degrees. The last angle that will be named is straight. The measure of the angle equals 180 degrees.
Answer:
6a
Step-by-step explanation:
The greatest factor that both 18 and 24 share is 6. The greates factor that a and 
share is a
Assuming she buys every yard of fabric for the same price, we divide $8 by 3 to find the price of 1 yard of fabric. Then we multiply 8/3 by 2 to find the cost of 2 yards of fabric.
$8/3 *2 = $16/3 =$ 5 1/3 = $5.3333
Answer:
x = -3
y = 1
Step-by-step explanation:
3x + 5y = -4
x + 5y = 2 (Solve for x) ------ New Equation: x = 2 - 5y
Solve for the first equation by plugging in the value of x, which is 2 - 5y.
3(2 - 5y) + 5y = -4
6 - 15y + 5y = -4
-10y = -10
y = 1
Use the value of y to solve for x
x + 5(1) = 2
x = 2-5
x = -3
