878/3 is 28 with a remainder of 10! The error is when they subtracted 258-248 wrong
Answer:
In linear expresiion 3 is the coefficient
X will be the variable and -15 will be the constant term.
I believe the answer is the 64 ounce container that is $3.20. the unit price of it was 0.05 while the other one was 0.055
Step-by-step explanation:
Arithmetic mean
Answer:
b= -4.68
Step-by-step explanation:
Hello!
We have to study variables:
Y: Monthly coffe sales
X: Price per pound of coffe ($)
The estimate regression line is
^Yi= a + bxi ∀ (i=1,.....,10)
The slope of the estimated regression line is represented by b.
The formula I'll use to calculate it is:
b= [n∑xiyi -(∑xi)*(∑yi)]/ n∑xi²-(∑xi)²
To calculate b we need to do some auxiliary calculations:
∑xiyi= 4213.15
∑xi= 87.47
∑yi= 545
∑xi²= 883.3703
Then we replace the formula:
b= [10*4213.15-(87.47)*(545)]/ n883.3703-(87.47)²
b= -4.68
I hope you have a SUPER day!
