Answer:
weak negative
Step-by-step explanation:
we know that
The correlation coefficient r measures the direction and strength of a linear relationship. It can take a range of values from +1 to -1.
Values between -0.5 and -1.0 or 0.5 and 1.0 indicate a strong negative/positive linear relationship
Values between -0.3 to -0.1 or 0.1 to 0.3 indicate a weak negative/positive linear relationship
In this problem
The correlation coefficient for the data is −0.31
therefore
Is a weak negative correlation
Answer:
x = 14
Step-by-step explanation:
Given
x - = x +
Multiply through by 20 ( the LCM of 5, 2 and 4 ) to clear the fractions
8x - 30 = 5x + 12 ( subtract 5x from both sides )
3x - 30 = 12 ( add 30 to both sides )
3x = 42 ( divide both sides by 3 )
x = 14
Answer:
The answer is
11.2
Step-by-step explanation:
Answer:
B. Information from the sample is typical of information in the population.
Step-by-step explanation:
In Statistical Research, a Bias refers to the tendency of a sample statistic to systematically overestimate or underestimate a population parameter.
(A)When portions of the population are excluded or underrepresented from the sample, it is a Sampling Bias.
(C)When those responding to a survey or poll differ systematically from the nonrespondents, it is referred to as Non-Response Bias.
(D)When certain groups in the population are systematically underrepresented in the sample, it is referred to as Selection Bias.
Therefore option B is not an example of a Bias.
Answer:
$67.50
Step by Step:
$45.00 divided by 6 = $7.50
$7.50 x 9 = $67.50