What is the SST for the data set (1,4), (2,6),(4,11)?

Mathematics

2 answers:

andrey2020 [161]3 years ago

6 0

Answer:

Step-by-step explanation:

SST = ∑ ( y − ȳ ) ² (ȳ = pronounced y bar is the mean of y values)

ȳ = (4+6+11)/3 = 21/3 = 7

∑ ( y − ȳ ) ² = ( 4 − 7 ) ² + ( 6 − 7 ) ² + ( 11 − 7 ) ²

= ( − 3 ) ² + ( - 1 ) ² + ( 4 ) ²

= 9 + 1 + 16

= 26

densk [106]3 years ago

5 0

Answer: 26

Step-by-step explanation:

First Data: (4 - 7)^2

Second data: (6 - 7)^2

Third Data: (11 - 7)^2

So the SST is (4 - 7)^2 + (6- 7)^2 + (11 - 7)^2 = 9 + 1 + 16 = 26

Hope this helps! :)

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ANSWER
$x=4, y=8$

EXPLANATION

If ABCD is a parallelogram, then

line AB is parallel to line DC .

This means that,

$(x + 2) \degree$
and

$(2x - 2) \degree$
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Alternate angles are congruent.

This implies that,

$2x - 2 = x + 2$

We group like terms to obtain,

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This simplifies to,

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Also, if ABCD is a parallelogram then,

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$5y - y = 24 + 8$

This simplifies to,

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We divide both side by 4 to get,

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