The probabilty of getting an A in math is 0.65 and the probability of getting an a in science is 0.62 whats the probability of g
1 answer:
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The answer is Y = 63
Here's how I got my answer:
Step 1: Add 4 to both sides. Which leaves us with
Step 2: Simplify to 9. Which leaves us with
Step 3: Multiply both sides by 7. Which leaves us with, your answer, Y = 63
Answer:
See explanation below.
Step-by-step explanation:
We assume that the data is given by :
x: 30, 30, 30, 50, 50, 50, 70,70, 70,90,90,90
y: 38, 43, 29, 32, 26, 33, 19, 27, 23, 14, 19, 21.
Where X represent the cost for scholarships in thousands of dollars and y represent the cost of life for an academic semester (The data comes from the web)
We can find the least-squares line appropriate for this data.
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:
We have an inverse linear relationship since the slope is negative between the variables of interest.