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zvonat [6]
3 years ago
10

A regression equation is obtained for a collection of paired data. It is found that the total variation is 20.711 , the explaine

d variation is 18.592 , and the unexplained variation is 2.119 . Find the coefficient of determination.
Mathematics
1 answer:
galben [10]3 years ago
8 0

Answer:

0.898

Step-by-step explanation:

The formula for the Coefficient of determination = ratio of explained variation to Total variation

From the above question, we have the following values

Explained variation = 18.592

Total variation = 20.711

The coefficient of determination = 18.592 : 20.711

= 18.592/20.711

= 0.8976872194

Approximately ≈ 0.898

Therefore, the coefficient of determination is 0.898

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3 years ago
Solve for x −9x+5≤17 OR 13x+25≤−1
arsen [322]

Answer:

(-∞ 2] ∪ [-4/3 ∞ )

Step-by-step explanation:

Given compound inequality,

-9x+5\leq 17\text{ or }13x+25\leq -1

-9x\leq 12\text{ or }13x\leq -26  ( Subtraction property of inequality )

-x\leq \frac{12}{9}\text{ or }x\leq -\frac{26}{13}   ( Division property of inequality )

-x\leq \frac{4}{3}\text{ or }x\leq -2

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Hence, the solution of the given inequality is,

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3 0
3 years ago
Read 2 more answers
Find the value of the variable and BC, if B is between A and C.<br> AB = 5x, BC = 3x-1, AC = 47
schepotkina [342]

Answer:

17

Step-by-step explanation:

AC = AB + BC

Since we know what each variable equals, we can write out the equation as shown:

47 = 5x + 3x - 1

Combining like terms:

47 = 8x - 1

Add 1 on both sides:

48 = 8x

Divide 8 on both sides:

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Now that we know what X equals, we can solve BC.

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Therefore BC = 17.

4 0
3 years ago
Please help solves asap
Anon25 [30]

Answer:

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7=49

10=41

9=49

Step-by-step explanation:

angle 8 is given and since 7 and 8 make 90 then 7 =49 because 90-41=49. 10 and 8 are the same size (at least it looks like it) therefore 7 and 9 are the same too. So that is how I got the answers.

7 0
3 years ago
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tatuchka [14]
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One line could be x=6 and the other could be x=2

Hope this helps :)
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3 years ago
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