Answer:
2:1
Step-by-step explanation:
Lets start by converting days to hours 5 days is 120 hours so 120:60 but we need to simplify and that would be 2:1
[67.9 %, 82.1 %] is the 95% confidence interval for the proportion of test-takers answering the question correctly. So we have [67.9 %, 82.1 %] In a random sample of 144 test-takers with 75% answered the question correctly. So the answer in this question is [67.9 %, 82.1 %].
A kickball is a sphere, so to solve this, we are going to use the formula for the volume of a sphere:
where
is the volume of the sphere.
is the diameter of the sphere.
We know form our problem that the diameter of the kickball is 10 inches; since the kickball is a sphere,
. Lets replace that value in our formula to find
:
We can conclude that the volume of the kickball is
523.6 cubic inches.