Im not sure if im correct but I think the answer is 82 hours.
This question is incomplete, the complete question is;
Suppose John is a high school statistics teacher who believes that watching many hours of TV leads to lower test scores. Immediately after giving the most recent test, he surveyed each of the 24 students in his class and asked them how many hours of TV they watched that week. He then matched each student's test grade with his or her survey response. After compiling the data, he used hours of TV watched to predict each student's test score. He found the least-squares regression line to be y" = -1.5x + 85.
He also calculated that the value of r, the correlation, was -0.61.
what is the correct value of the coefficient of determination R² and give a correct interpretation of its meaning
Answer:
Interpretation of coefficient of determination R² = 0.3721
R² = 0.3721, meaning 37.21% of the total variation in test scores can be explained by the least square regression line
Step-by-step explanation:
Given the data in the question;
the least square regression line is;
y" = -1.5x + 85
the correlation coefficient r = -0.61
Now, the coefficient of determination R² is square of correlation coefficient r
R² = -61²
R² = 0.3721
Answer:
The answer to your question is 12.5 %
Step-by-step explanation:
Data
Total points = 168
Points scored in the regular season = 147
Percent of points scored in the playoff game = ?
Process
1.- Calculate the points scored in the playoff game
Points in playoff game = 168 - 147
= 21
2.- Calculate the percent of points scored in the playoff game using proportions
168 points -------------------- 100%
21 points --------------------- x
x = (21 x 100) / 168
x = 2100 / 168
x = 12.5 %
Answer:
-4
Step-by-step explanation:
bro thats 6th grade math lol and its SO easy just need to try
Answer:
1
Step-by-step explanation:
Any number raised to the 0th power is 1, except for 0; 0 to the 0th power is undefined.
