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larisa86 [58]
3 years ago
12

A regression-based forecast has yielded a coefficient of correlation (r) equal to 0.754. What is the coefficient of determinatio

n?
Mathematics
1 answer:
Andreyy893 years ago
6 0

Answer:

0.568516

Step-by-step explanation:

To find the the Coefficient of determination you simply square r.

Just make sure you have the original r value and not the rounded value.

0.754^2 = 0.568516

and then depending on how many decimals you need to round to...

You might be interested in
How to convert .75 to 3/4
Travka [436]

Answer:

Back to your fraction 3/4, if you have 3 parts of 4, you have 3 25% slices which is 3 * 25% = 75%. Now that you have 3/4 as a percentage you simply have to covert the percent to a decimal. To do this you will just move the decimal 2 places to the left.

Step-by-step explanation:

mark me as the brainliest

8 0
2 years ago
A certain forest covers an area of 2100 km^2. Suppose that each year this area decreases by 5.25%. What will the area be after 6
Neko [114]

Answer:

The area after 6 years is 1519.49km^2

<em></em>

Step-by-step explanation:

Given

a = 2100 --- Initial Value

r = 5.25\% --- Rate

Required

Determine the area after 6 years

Because the area reduces,, the following formula will be used to solve the question.

y = a*(1 - r)^t

Here

t = 6

So, we have:

y = 2100*(1 - 5.25\%)^6

Convert percentage to decimal

y = 2100*(1 - 0.0525)^6

y = 2100*(0.9475)^6

y = 1519.47866516

y = 1519.49 -- approximated

<em>The area after 6 years is </em>1519.49km^2<em></em>

4 0
2 years ago
I need help , slope calculator
Troyanec [42]

Answer:

Step-by-step explanation:

change in x (horizontal) = 4 - 1 = 3

Change in y (vertical)  = 9 - 3 = 6

Slope = change in x / change in y

slope = 3 / 6 = 1/2

6 0
3 years ago
PLEASE PLEASE PLEASEE PLEASEEEEESE HELPME!?!?!? IM SO BAD AT MATH PLEASE HELP!!!
Fiesta28 [93]
For this case we have the following function:
 f (x) = 0.01 * (2) ^ x&#10;
 By definition, the average rate of change is given by:
 AVR =  \frac{f(x2) - f(x1)}{x2 - x1}
 We evaluate the function for the given values:
 For x = 7:
 f (7) = 0.01 * (2) ^ 7&#10;&#10;f (7) = 1.28
 For x = 14:
 f (14) = 0.01 * (2) ^ {14}  f (14) = 163.84
 Then, replacing values we have:
 AVR = \frac{163.84 - 1.28}{14 - 7}
 AVR = 23.22
 Answer:
 
the average rate of change from x = 7 to x = 14 is:
 
a. 23.22 
7 0
3 years ago
I need help with 3 and 4 :))
igomit [66]

Ah so your confused? I got you fam let me explain. So it would be best to start in the middle then graph the coordinates, move those coordinates 6 right then 5 up for the first one. Then do the same thing for the other but move them 8 left and down once.

4 0
2 years ago
Read 2 more answers
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