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Alekssandra [29.7K]
3 years ago
9

If the coefficient of correlation is a positive value, then the slope of the regression line

Mathematics
1 answer:
ratelena [41]3 years ago
6 0

Answer:

must also be positive

Step-by-step explanation:

The sign of the correlation coefficient indicates whether the fitted line is sloping upwards or downwards, so it should be consistent with the sign of the slope of the fitted line. so if the correlation line is poitive so should the regression line

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The value of x in the given equation [ √( 1 + (25/144) ) = 1 + (x/12) ] is 5.

<h3>What is an Equation?</h3>

An equation is simply a mathematical formula that expresses the equality of two expressions, using the equals sign as a connection between them.

Given that;

  • √( 1 + (25/144) ) = 1 + (x/12)
  • Find the value of x.

First, we square both sides

√( 1 + (25/144) ) = 1 + (x/12)

(√( 1 + (25/144) ))² = (1 + (x/12))²

1 + (25/144) = 1 + ( x²/144)

Collect like terms

1 - 1 + (25/144) = ( x²/144)

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We cross multiply

25 × 144 = x² × 144

Multiply each sides by 1/144

x² = 25

x = √25

x = 5

Therefore, the value of x in the given equation [ √( 1 + (25/144) ) = 1 + (x/12) ] is 5.

Learn more about equations here: brainly.com/question/14686792

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Answer:

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Step-by-step explanation:

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