Answer:
1. Slope = 0.5857
2. Intercept = 31.7
3. Y = 88
4. X = 70
5. 5.4234
Step-by-step explanation:
We have x and y
Mean of x = 91
Mean of y = 85
Sd of x = Sx = 10.5
Sd of y = Sy = 8.2
The registration regression equation
Y - ybar = r(Sy/Sx)(x-xbar)
y - 85 = 0.75(8.2/10.5)(x-91)
Y - 85 = 0.75(0.7809)(x-91)
Y-85 = 0.5857X - 53.3
Y = 0.5857X - 53.3+85
Y = 0.5857X + 31.7
1. Slope = 0.5857
2. Intercept = 31.7
3. If x = 96,
Y = 0.5857(96) + 31.7
Y = 87.927
Y = 88
4. If x = 65,
Y = 0.5857(65)+31.7
Y = 69.77
Y = 70
5. Sy * √(1-r²)
= 8.2 x √(1-0.75²)
= 8.2 x √(1-0.5625
8.2 x √0.4375
= 8.2x 0.6614
= 5.4234
Answer:
Step-by-step explanation:
Answer:
d. 100
Step-by-step explanation:
use a calculator
Step-by-step explanation:
1. let n=2, then, n+2= 2+2=4 so 2^2= 4 and 4^2=16 then 16-4=12 which is an even number
2. let n=4, the. n+3=4+3=7, and 4^2=16 and 7^2=49 then 49-16 =33 which is an odd number
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The answer is 9. 5625 / 625 = 9
This means that 5625 square feet of lawn would provide the daily supplies of oxygen for 9 people