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uysha [10]
3 years ago
9

Which is correct to find the value of the coefficient of determination (r2)?

Mathematics
1 answer:
Savatey [412]3 years ago
4 0

<span>The coefficient of determination is presented by R</span>²<span> is mostly used in the analysis of regression where it is the proportion of the variance in the dependent variable that is predictable from the independent variable. The range of values between the predicted scores and the actual scores is between 0 to 1. The closer the value to 1, the greater is the relationship between variables and has lesser errors. For example, if there is an R</span>²<span> of 0.80, then it means that 80% is predictable. R</span>² can be obtained using excel as trendline or with the use of formula.

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What is the answer to this question?
timurjin [86]

Answer: Option 1

Step-by-step explanation:

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3 0
2 years ago
Which of these strategies would eliminate a variable in the system of equations?
KATRIN_1 [288]
Answer: A and B


Explanation: I’ll use A as an example. When you multiply the bottom equation by -3/2, the equation becomes: -9x+6y=-3. Then, proceed to add the equations. Look at X and Y in both equations: do the Y variables in both equations equal to 0 when added together? Yes, because -6y+6y=0! Therefore, you can eliminate y in these two equations.




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6 0
3 years ago
3. Calvin has a bucket of marbles. The table shows the number of marbles of each color Color Amount Red Blue 3 Yellow 4 Green Ca
dalvyx [7]

The false statement is (c) the probability of selecting a blue or yellow marble is less than the probability of selecting a red or green marble.

<h3>What are probabilities?</h3>

Probabilities are used to determine the chances of events

The table entry is given as:

  • Red  - 2
  • Blue - 3
  • Yellow  - 4
  • Green - 3

From the list of options, the false statement is

(c) the probability of selecting a blue or yellow marble is less than the probability of selecting a red or green marble.

This is so because:

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  • Red or Green = 2 + 3 = 5

Notice the count of blue or yellow marbles (7) is greater than the number of  red or green marbles (5)

This means that, the probability of selecting a blue or yellow marble is greater than the probability of selecting a red or green marble.

Read more about probabilities at:

brainly.com/question/251701

7 0
2 years ago
I need help with these questions. PLEASE HELP
Svetach [21]
The answers are MK and PY and AH.
5 0
3 years ago
HELP ASAP. WILL GIVE BRAINLIEST.
Delvig [45]

Answer:

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3 0
3 years ago
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