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sertanlavr [38]
3 years ago
11

Please fill the space below, read the question for details. there are also other pictures to help.

Mathematics
1 answer:
inna [77]3 years ago
4 0
32 total rows would be required. I simply did 800, which is 4 times 200, divided by 25, which is the amount of chairs I have each row, and I got 32. Hope this helps
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Explain why the slope b of the least-squares line always has the same sign (positive or negative) as the sample correlation coef
rodikova [14]

Answer:

b = r(sy/sx)

Step-by-step explanation:

The sign of the slope Coefficient and the correlation are the same because both the slope and correlation Coefficient evaluates the changes in one variable with respect to the other . A decrease in y as x increases will result in a negative slope value and also a negative correlation Coefficient. While increase in x which results in the increase in y imvariable will result in a positive correlation Coefficient value and r value.

Slope, b = correlation Coefficient,r (Sy /Sx)

Sx = standard deviation of x values

Sy = standard deviation of Y Values

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3 years ago
Estimate the closest to the actual value of (2.9983) · (1.8792)<br> to the nearest tenths place.
Fantom [35]

Answer:

3 & 2

Explanation:

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mario62 [17]

Point/slope form is:-

y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line

In the above diagram the slope is -1 and one point on the line is (0, -2) so we have:-

y - (-2) = -1(x - 0)

y + 2 = -x

x + y + 2 = 0 is the answer

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Answer:

Step-by-step explanation:

5/2 *7/5= 7/2

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Step-by-step explanation:

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