1. Which of the following statements concerning correlation and regression is true: If the correlation between x and y is negative, then the slope of the regression line that predicts y from x will be negative. O If the correlation between x and y equals 0.7, then 70 percent of the variability in the y-variable is explained by the regression. If the correlation between x and y is high, then it is always appropriate to use regression to predict y from x. O If the correlation between x and y is negative, then it is never appropriate to use regression to predict y from X.

Q: How many even 3-digit numbers can be formed from the digits 1, 3, 4, 8, and 9 with no repetitions…

A: Out of the total 5 digits 1, 3, 4, 8 and 9 given, the even digits are 4 and 8. For the 3- digit…

Q: 144

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A:

Q: (369) 34 / 3 * 9 +12 / 4 * 5

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Q: 9) 60

A: The figure is

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A:

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A:

Q: 부 18 13)

A: We can make it easier for you.

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A:

Q: 707 55. 12

A: Consider the given expression as 70712

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Q: 23.12 + 72.98

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Q: 20 Σ 36"

A:

Q: 8. 2 k=1 3k

A:

Q: In Problems 51-60, find the indicated function or value if C(x, y) = 3x² + 10xy − 8y² + 4x 15y 120.…

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Q: 9) 105 75

A:

Q: 9. 6100 318 + 8 8

A: Given that 68+38 Find the value of 68+38