What is the quadratic regression equation that fits these data?
2 answers:
Answer:
the answer is a.
Step-by-step explanation:
I plugged your data into a graphing calculator, and got a quad reg in the picture.
<h2>Answer:</h2>
Option: A is the correct answer.
The quadratic equation that fits these data is:
A.
We are given a table of values as:
x y
-4 35
-3 20
-2 12
-1 6
0 2
1 6
2 10
3 24
4 38
From the given data values we see that the points follow a parabolic path this means that the line of best fit will has a quadratic equation.
Also, the line that best represents these data points as is done by the regression calculator is:
A.
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The number of pages in the book is 180
<u>Explanation:</u>
The first thing we should do is to convert these fractions to percentage
3/4 of the remainder on thursday:
Thursday: (100 - (13.33 + 33.33 + 22.22) * (3/4) = 23.33%
he still has 14 pages left to read on friday
Friday: [100 - (13.33 + 33.33 + 22.22) ] - 23.33 = 7.77%
Which means that 14 pages represent 7.77% of the book.
Therefore the number of pages of the book is given by:
Therefore, number of pages in the book is 180