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mestny [16]
3 years ago
12

PLEASE HELP ASAP I WILL MARK BRAINLIEST

Mathematics
1 answer:
Westkost [7]3 years ago
4 0

Answer:

i think the first is positive if thats what you are looking the other two are negative i think

first one is strong and 2nd one is weak 3rd one is moderate please give brainliest i need 5 to rank up and i only have 1

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An economist conducted a study of the possible association between weekly income and weekly grocery expenditures. The particular
kolezko [41]

Answer:

42.1% of variation in the response is explained by the regression line

Step-by-step explanation:

Correlation coefficient is a measure which tells us that how strongly are two variables under study are linearly related to each other i.e correlation coefficient gives the strength of linear association between the variables.

If the magnitude of correlation coefficient is closer to 1, it indicates a strong linear relationship. If the magnitude of correlation coefficient is closer to 0, it indicates a weak linear relationship.

There is another variable known as "Coefficient of Determination", which is equal to square of Correlation Coefficient. Coefficient of Determination tells us that what percentage of variation in the response of the study can be explained by the regression line.

This means, for this question we need to calculate the Coefficient of Determination.

Correlation coefficient = r = 0.649

Coefficient of Determination = R = r² = (0.649)²= 0.421 = 42.1 %

This means that 42.1% of variation in the response is explained by the regression line.

5 0
3 years ago
-4x + 7(x + (-2)) > -18
professor190 [17]
-4x+7x-14
3x-14>-18
3x>-4
X>-4/3
3 0
3 years ago
Which which division problem does the diagram below best illustrate?<br><br><br>60 points ​
siniylev [52]

Answer:

Step-by-step explanation:

32 divide 4 = 8

4 0
3 years ago
Read 2 more answers
What is the equation in point slope form of the line passing through (0,5) and (-2,11)
IRISSAK [1]

The equation of the line passing through (x_1,y_1) and (x_2,y_2) is

\frac{x-x_1}{y-y_1} =\frac{x_2-x_1}{y_2-y_1}. Here

\frac{y_2-y_1}{x_2-x_1} is the slope of the line.

Substituting numerical values, the equation of the line is

\frac{x-0}{y-5} =\frac{-2-0}{11-5} \\ \frac{x}{y-5} =-\frac{1}{3} \\ 3x=5-y\\ 3x+y=5

The equation of the line is 3x+y=5

6 0
2 years ago
Find (Supplementary angles) and the (Vertical angles). PLEASE​
solmaris [256]
Supplementary would be like 6&7 or 2&3 and vertical would be like 6&8 or 7&5
4 0
3 years ago
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