Multiply the hours buy her hourly pay:
6 × 40 = 240
6 × 6.5 = 39
6 × 8 = 48
Add them together:
240 + 39 + 48 = 327
ANSWER: Mary Stevens made $327.
I really hope this helped you! c:
1; 127 mi
2;78
Sorry i did not know the other answers
I hoped this helped
21 I think I'm not sure tho
Answer:
A. R2 = 0.6724, meaning 67.24% of the total variation in test scores can be explained by the least‑squares regression line.
Step-by-step explanation:
John is predicting test scores of students on the basis of their home work averages and he get the following regression equation
y=0.2 x +82.
Here, dependent variable y is the test scores and independent variable x is home averages because test scores are predicted on the basis of home work averages.
The coefficient of determination R² indicates the explained variability of dependent variable due to its linear relationship with independent variable.
We are given that correlation coefficient r= 0.82.
coefficient of determination R²=0.82²=0.6724 or 67.24%.
Thus, we can say that 67.24% of total variability in test scores is explained by its linear relationship with homework averages.
Also, we can say that, R2 = 0.6724, meaning 67.24% of the total variation in test scores can be explained by the least‑squares regression line.
