Can someone help me answer this? I’ve been trying to get help for a while. Thanks!
2 answers:
Answer:
radius- 2 inches
height- 3 inches
Step-by-step explanation:
the equation for the volume of a cylinder is V= (h)
the problem gives you the diamater which is 4 inches, the radius will simply be the diamater divided in half resulting in the radius being 2 inches.
So now you plug in the raidus (2 inches) to the equation of the volume of the cylinder and the problem already gave you the volume of the cylinder which is 12 so you plug that in as well
12=
(h)
simplify to get the height (the pies cancel out and you divide 12 by 4 because 2^2 is 4)
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1) Mean: 6.5
2) Standard deviation: 3.2
Step-by-step explanation:
1)
A uniform random distribution is the distribution of a variable that can assume n different values, and each of these values is equally likely to occur.
This means that the probability of occurring of each of these values is the same:
For a uniform random distribution, the mean of the distribution is simply equal to the median value of the distribution, which is exactly at the center of the distribution itself. It can be calculated as
where
a is the lowest value of the distribution
b is the highest value of the distribution
Here the distribution consists of all values ranging from 1 to 12, so:
a = 1
b = 12
Therefore the mean value is
2)
For a uniform random distribution, it can be dimostrated that the variance of the distribution is
For the distribution in this problem, we have:
a = 1
b = 12
Therefore the variance is
The standard deviation is the square root of the variance, therefore for this distribution it is:
Learn more about mean and standard deviation:
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