Solve the proportions, round your answers to 1 decimal digit. 24/66 = 9/x
1 answer:
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Answer: y = 5 +
Step-by-step explanation:
-4y + 2x = -20
Move the variable to the right
-4y = -20 - 2x
Divide Both sides
5 +
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Answer:
Step-by-step explanation:
We assume that th data is this one:
x: 50, 55, 50, 79, 44, 37, 70, 45, 49
y: 152, 48, 22, 35, 43, 171, 13, 185, 25
a) Compute the equation of the least-squares regression line. (Round your numerical values to five decimal places.)For this case we need to calculate the slope with the following formula:
Where:
So we can find the sums like this:
With these we can find the sums:
And the slope would be:
Nowe we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by: