Answer:
0.03125
Step-by-step explanation:
YEP THAT'S THE ANSWERRR DSJJZJZ
Answer:
gives
Step-by-step explanation:
Given
Required
Show that the y values increases by 4 for
We have:
For
Substitute
For
Substitute
So, we have:
Subtract from
Collect like terms
Hence:
gives
i.e. an increment of 4
The student is not entirely correct. If the student said "the sum, difference, and product of two integers are always integers", then they would be fully correct. I left out "quotient".
Dividing two integers doesn't always lead to an integer result. For example, 10/7 = 1.43 approximately.
The regression equation which correctly models the data in this table is y = 1.49x - 107.5,
<h3>How to determine the regression equation?</h3>
From the table of data values, we have the following parameters:
∑x = 632
∑y = 404
∑x² = 80.142
∑xy = 51.448
Mathematically, the regression equation is represented by the following slope equation:
y = Bx + A
Next, we would determine A by using this expression:
A = (∑y·∑x² - ∑x·∑xy)/(n∑x² - (∑x)²)
A = (404×80,142 - 632×51,448)/(5×∑x² - (632)²)
A = (32,377,368 - 32,515136)/(5×80142 - 399,424)
A = -137,768/1286
A = 107.5
For B, we have:
B = (n∑xy· - ∑x·∑y)/(n∑x² - (∑x)²)
B = (5×51,448 - 632×404)/(5×∑x² - (632)²)
B = 1.49.
y = Bx + A
y = 1.49x - 107.5
Read more about regression equation here: brainly.com/question/28037520
#SPJ1