Th r2 values of different regression are found for a scatterplot. which of the following would be the best mathematical model to use for the data?

a. power model for a power regression r2= 0.522

b. linear model for a linear regression r2= 0.237

c. exponential model for an exponential regression r2=0.712

d. quadratic model for a quadratic regression r2=0.698

The correct answer is choice C;  Exponential model for an exponential regression R2=0.712

Step-by-step explanation:

The coefficient of determination (R2) determines the predictive power of the model. The greater the value of R2, the better the model fits the data. It also serves as an indicator of the overall goodness of fit of the data to a particular model. Hence, the Exponential model for an exponential regression R2=0.712 is the best mathematical model.

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15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.