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vampirchik [111]
2 years ago
5

Question: Help plsss

Mathematics
1 answer:
Mice21 [21]2 years ago
3 0

Answer:

I hope it help............

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Below are some data examining whether reading the textbook for this course is related to class enjoyment.
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Answer:

13.36

Step-by-step explanation:

I will first create a table

X. Y. XY. X²

1. 20. 20. 1

2. 24. 48. 4

3. 35. 105. 9

4. 46. 184. 16

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6. 80. 480. 36

1. 12. 12. 1

2. 34. 68. 4

3. 34. 102. 9

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ΣX = 32

ΣY = 430

ΣXY = 1744

ΣX² = 130

n = 10

The formula for regression line is given as :

Y = a + bX

a = intercept

b = slope

The question requires us to find b which is the slope.

b = nΣXY-ΣXΣY/nΣX²-(ΣX)²

= 10x1744-32x430/10x130-(32)²

= 17440-13760/1300-1024

= 3680/276

= 13.36

b = 13.36

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2 years ago
Alan sells beaded necklaces. Each large necklace sells for $5.70 and each small necklace sells for $5.10. How much will he earn
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What is the line of symmetry of the parabola y=x2+6x-9?
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WILL MARK BRAINLYIST IF CORRECT!
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Your answer will be C
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