Answer:
ok good
Step-by-step explanation:
Answer:
2/5 or 40%
Step-by-step explanation:
total students=30
female students=18
That must mean, assuming the rest of the class is binary male=12
12/30=2/5 or 40% if you multiply by 20, then multiply by 100%
(2/5)*20=.40*100%=40%
Answer:
51% of the variation in Y is not explained by the regression line.
Step-by-step explanation:
To find the amount of variation not explained by the regression equation (how you found the correlation coefficient), we need to find <em>R. </em>We already have r ...
So to find R from r ( the correlation coefficient ) we just square it.
r² = .7² = .49
Then we just subtract that number from 1 to get the amount of <em>variation that is </em>not explained - which is ... .49 - 1 = .51 (convert to percent) = 51%
Answer:
x = 17
Step-by-step explanation:
(x-3)2 = 7
Divide both sides by two
(<u>x-3)2</u> = <u>7</u>
2 2
x-3= 31/2
x= 31/2-3
x= 1/2 or 0.5
Area of a circle= the circumference squared over 4 pi
// I'm going to assume that pi is being rounded to 3.14
A= 10 squared over 4(3.14)
A= 7.96 inches squared
