I hope it helps you get it right
Add 3y and 4y: 7y=56
Divide by 7: y=8
The formula of the variance of the distribution of sample mean of a random variable X, which it will denoted by
is

where n is the size of the sample.
Since X is continuously uniform between 3 and 8, you have

Therefore, the variance wanted is
Answer:
I think it would be C
He gor A because he thought that since there waz 3 containers that you would just add 2 because there was 3 containers.
Squares have equal side lengths, so that is why the question is only asking for one side length.
The area of a square is calculated using the formula s^2, where s stands for a side of the square.
To find the length of one side of the park, you can take the given area (3,600 m^2) and square root it. This would give you the length of one side of the square park.
√3,600 = 60
The length of one side of the park is 60 meters.