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:
70%
Step-by-step explanation:
Answer:
264cm³
Step-by-step explanation:
Volume of figure
= (3×8×7) + (4×3×8)
= 168 + 96
= 264cm³
Answer:
The actual height of the observation deck is 1206.82 ft
Step-by-step explanation:
Let h be the height of the building
And d be the height of the observation deck
Therefore,
d/h = 8.3/10 = 0.83
d = 0.83h
Given that h = 1454 ft
d = 0.83 × 1454 ft
d = 1206.82 ft
