Answer:
The mean of the random variable is 0.
The variance of the random variable is 
Step-by-step explanation:
We are given the following probability distribution:





Mean:
Sum of each value multiplied by its probabilities. So

The mean of the random variable is 0.
Variance:
Sum of the difference squared between each value and the mean, multiplied by its probabilities. So

The variance of the random variable is 
Answer:
Step-by-step explanation:
100%
9514 1404 393
Answer:
C. 1
Step-by-step explanation:
The lateral area is given by the formula ...
LA = 2πrh
Filling in the given values, you have ...
8π = 2π·r·4
1 = r . . . . . . . . divide by the coefficient of r
The radius of the cylinder is 1 foot.
X divided by 2 plus six multiplied by x