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andreyandreev [35.5K]
2 years ago
8

HELP FAST 10 POINTS !!

Mathematics
2 answers:
Ray Of Light [21]2 years ago
7 0
The rate of change is -6 because it’s being subtracted by 6 each time.
amid [387]2 years ago
6 0
Rate of change is -6
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Does anyone know the answer to this problem?
Mariana [72]

The regression equation is y = 16.585x - 639.769 and the linear correlation coefficient indicates a strong linear relationship

<h3>How to determine the regression equation?</h3>

To do this, we make use of a statistical calculator;

Using the statistical calculator, we have the following summary:

  • Sum of X = 554
  • Sum of Y = 4070
  • Mean X = 69.25
  • Mean Y = 508.75
  • Sum of squares (SSX) = 725.5
  • Sum of products (SP) = 12032.5
  • Correlation coefficient, r = 0.9768

The regression equation is

ŷ = bx + a

Where:

b = SP/SSX = 12032.5/725.5 = 16.58511

a = MY - bMX = 508.75 - (16.59*69.25) = -639.76912

Hence, the regression equation is y = 16.585x - 639.769

<h3>The number of cans sold at 90 degrees F</h3>

This means that"

x = 90

So, we have:

y = 16.585 * 90 - 639.769

Evaluate

y = 852.881

Approximate

y = 853

Hence, 853 cans were sold at 90 degrees F

<h3>The linear correlation coefficient</h3>

In (a), we have:

r = 0.9768

This means that the linear correlation coefficient is 0.9768

<h3>The conclusion</h3>

We have:

r = 0.9768

The above value is closer to 1 because

|r| > 0.9

i.e.

0.9768 > 0.9

Hence, the linear correlation coefficient indicates a strong linear relationship

Read more about regression at:

brainly.com/question/17844286

#SPJ1

6 0
1 year ago
The diameter of a circle is 8 inches. what is the circle's circumference​
Svetradugi [14.3K]

Answer:

approx. 25.13

Step-by-step explanation:

C= 2πr

radius is half diameter

6 0
3 years ago
Read 2 more answers
In following diagram BC is parallel to DE
gizmo_the_mogwai [7]

Answer:can someone answer my question

Step-by-step explanation:

4 0
3 years ago
A car is 200 km from its destination after an hour and 80 km from its destination after 3 hour
Pani-rosa [81]

200 - 80 is equal to 120. So the car traveled 120 km in 3 hours. It travels at an average of 120/3 = 40 km/hr, and will reach its destination in 2 hours.

4 0
3 years ago
4.8 x 10 to the 8th power divided by 1.2 x 10 to the 4th power times 2.2 x 10 to the negative 8th power
Masteriza [31]
(4.8*10^8)/(1.2*10^4)2.2*10^-8=11/<span>12500</span>
I hope this helps
6 0
3 years ago
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