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
5. 67. 335. 25
6. 80. 480. 36
1. 12. 12. 1
2. 34. 68. 4
3. 34. 102. 9
5. 78. 430. 25
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
Answer:
B
Step-by-step explanation:
I've taken a picture of the way I solved it.
Answer:
bro go0gle is the right answer for this i dont think the smartes person in the world can solve this.
Step-by-step explanation:
Answer:
1. 115
2. 65
3. 110
4. 70
5. 70
6. 70
7. 65
8. 115
9. corresponding angles
10. complementary interior angles
11. opposite exterior angles
12. complementary interior angles
13. unrelated
14. x = 9
15. x = 6
Answer:
-2
Step-by-step explanation:
-6 - (-4)
Subtracting a negative is like adding
-6 +4
-2
