If 80% of a number is 20, what is 20% of the number?
2 answers:
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Answer:
<h2>0.7</h2>Step-by-step explanation:
The coefficient of determination which is also known as the R² value is expressed as shown;
Sum of square of total (SST)= sum of square of error (SSE )+ sum of square of regression (SSR)
Given SSE = 60 and SSR = 140
SST = 60 + 140
SST = 200
Since R² = SSR/SST
R² = 140/200
R² = 0.7
Hence, the coefficient of determination is 0.7. Note that the coefficient of determination always lies between 0 and 1.
Answer:
After correcting error of Mia and solving the expression we get 14.25
Step-by-step explanation:
The given expression is:
First I solve the expression, and then will point the error
So, the mistake Mia did was when she inverted division sign into multiplication, she didn't invert the term next to division sign.
The step she did was:
While the correct step was:
After correcting error of Mia and solving the expression we get 14.25