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Artist 52 [7]
3 years ago
6

Find the radius of the circle whose equation is x2 - 10x + y2 - 10y=-1. 1 7 49

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
3 0
The answer is r=7 so the answer is 7
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Answer:

The purpose of testing whether β1 = 0 is to determine whether or not there is a significant relationship between x and y

Step-by-step explanation:

  • The purpose of testing whether β1 = 0 is to determine whether or not the mean of the x values is equal to the mean of the y values.

No, since we are not interested if the mean for the two variables x and y are equal, we want to know if we have relationship between the two variables.

  • The purpose of testing whether β1 = 0 is to determine whether or not the regression line provides a good fit for the data

No, if we want to test if the regression line provides a good fit for the data we need to use a Chi square test or other type of test.

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Alternative hypothesis: \beta_1 \neq 0

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We are asked to find 7 is what percent to 30.

We will use proportions to solve our given problem.      

Let us assume that 7 is n% of 30. So we can set a proportion as:

\frac{n}{100}=\frac{7}{30}

Let us solve for n.

\frac{n}{100}\cdot 100=\frac{7}{30}\cdot 100

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Therefore, 7 is 23.333\% of 30.

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