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rosijanka [135]
3 years ago
7

Which is most likely the correlation coefficient for the set of data shown?

Mathematics
1 answer:
Sonja [21]3 years ago
8 0

The correlation coefficient of a scatter plot with line of best fit shown will be the slope of the line.

We can eliminate last 2 choices because the line is clearly a downward sloping line and it's slope wont be positive.

From the first two, it looks like the plot's slope is very close to -1. So we take -0.91, instead of -0.35. <em>[note: 0.91 is more steeper than 0.35 (which is very relaxed)]</em>


ANSWER: -0.91

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Y = -x - 1 and y = 1/2x + k intersect at the point (-2,1). Find the value of k.
Lena [83]

Answer:

k = 2

Step-by-step explanation:

(-2,1) =  (x,y)   So you substitute -2 and 1 for x and y

1 = -(-2) - 1    1 = 1/2 × -2 + k

1/2 × -2 = -1       -1 + 2 = 1

k = 2           1 = 1/2 × -2 + 2


I hope this helps


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List all the numbers from 1 to 100 that have 13 as a factor
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In it 34/50 of the coins are quarters what percent of the coins are quarters
ziro4ka [17]

Answer:

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Percent means out of 100

34/50

Multiply by 2/2

34/50 *2/2

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This means 68 percent

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Write an expression for “Triple the sum of 33 and b”. *
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Answer:

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