Answer:
x = 33
Step-by-step explanation:
Answer:
the numerical value of the correlation between percent of classes attended and grade index is r = 0.4
Step-by-step explanation:
Given the data in the question;
we know that;
the coefficient of determination is r²
while the correlation coefficient is defined as r = √(r²)
The coefficient of determination tells us the percentage of the variation in y by the corresponding variation in x.
Now, given that class attendance explained 16% of the variation in grade index among the students.
so
coefficient of determination is r² = 16%
The correlation coefficient between percent of classes attended and grade index will be;
r = √(r²)
r = √( 16% )
r = √( 0.16 )
r = 0.4
Therefore, the numerical value of the correlation between percent of classes attended and grade index is r = 0.4
Answer:
3.5 HOURS
if he is 40 mph he goes 40 miles in 1 hour so it will take 3 1/2 hours to go 190 miles
The question demands that we find a fraction of a given quantity.
The 'of ' means multiplication.
So the total distance of the journey was
But they walked ¼ of the whole journey. We are supposed to find
Hence they walked 3.25 miles.
