Answer:
slope= 0.52
Step-by-step explanation:
For American women
Mean (x) = 64 inches
Standard deviation (sx) = 2.7 inches
For American Men
Mean(ÿ) = 69.3 inches
Standard deviation (sy) = 2.8 inches
r = 0.5
Slope = ??
Husband height = Y
Wife height = X
the general equation of regression line
y = a + bx
The slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for Y
b = r (sy/sx)
b = 0.5(2.8/2.7)
b = 0.52
The intercept a = ÿ - bx
a = 69.3 - 0.52(64)
a = 69.3 - 33.28
a = 36.02
The equation of the regression line y = a + bx
y = 36.02 + 0.52x
Answer:
Step-by-step explanation:
Start by reducing the fractions,
And you will get 2/3 plus 1/2
From there find the least common denominator, in this case, 6.
Multiply each fraction by what would make the denominator 6. For 2/3 you would multiply by 2, which would leave you with the original fraction of 4/6. For 1/2, you would multiply by 3. Which would give you 3/6.
Now you have 4/6 + 3/6
Your answer is 7/6, Or 1 1/6
Answer:
it depends on the weight on the assignment or test but you will probably be at a 68-71
Step-by-step explanation:
Answer:
<h2>x = 7</h2><h2 />
Step-by-step explanation:
0.7x-1.4=3.5
0.7x = 3.5 + 1.4
x = 4.9 / 0.7
x = 7
