Question 1073270
you are correct
:
The linear regression equations are
:
Regression Equation(y) = a + bx
: 
Slope(b) = (NΣXY - (ΣX)(ΣY)) / (NΣX^2 - (ΣX)^2)
:		
Intercept(a) = (ΣY - b(ΣX)) / N 
:
Note Σ means the summation of the variable's values
:
x and y are the variables, x is shoe sizes and y is height in inches
:
b = The slope of the regression line 
:
a = The intercept point of the regression line and the y axis. 
:
N = Number of values - you have six pairs, so N = 6
: 
X = shoe size values 
: 
Y = height values in inches
: 
ΣXY = Sum of the product of shoe sizes and heights in inches
:
ΣX = Sum of shoe sizes
:
ΣY = Sum of heights in inches
: 
ΣX^2 = Sum of squares of shoe sizes
: