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Ivanshal [37]
2 years ago
7

Please HELP!! I’ll mark you as brainliest

Mathematics
2 answers:
ivann1987 [24]2 years ago
7 0
The answer is c and this is how I got my answer

disa [49]2 years ago
5 0
The correct choice is C .
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A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following
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Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

Estimated slope of sample regression line  = \dfrac{Upper \ limit + lower\ limit}{2}

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Estimated slope of sample regression line  = \dfrac{-0.181+1.529}{2}

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⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.

We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong

So, the correct option : a. The correlation coefficient of the data is positive.

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Convert 5.6 into vulgar fraction​
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Answer:

The answer is 28/5

Step-by-step explanation:

5.6 can be written as 56/10 into vulgar fraction.

Thus, The answer is 56/10 = 28/5

<u>-TheUnknownScientist 72</u>

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