Determine mu subscript x overbar and sigma subscript x overbar from the given parameters of the population and sample size. equals 56, sigma equals 16, nequals27.

Step-by-step explanation:

Given that a population has mean as 56 and std deviation as 16.

The above are population parameters.

Whenever random samples are drawn for large size, by central limit theorem we have the sample mean will follow a normal distribution with mean = population mean and std error = std deviation/sqrt of n

Hence here sample bar will be normal with

Mean of x bar =

Std error of x bar =

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !