Answer: 2
Step-by-step explanation:
The The square root of R² (the coefficient of determination) is not r, the correlation coefficient. Therefore, it's false.
<h3>What is a correlation coefficient?</h3>
It should be noted that the correlation coefficient is used to measure how string the relationship between two variables are.
The correlation formula tells us the linear relationship between the variables. R² is the square of the correlation coefficient.
Learn more about correlation on:
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The equation to find a hypotenuse is
A^2 + b^2=c^2
Plug in the numbers
30^2 + 40^2 = c^2
900 + 1600 =c^2
2500 = c^2
The square-root of 2500 = c
50=c
The hypotenuse of the triangle is 50
Hope this helps!
Answer:
The answer is the 2nd one.
Step-by-step explanation:
It is the only one that makes sense.
Hope this helps you.