If you are told a population has a mean of 25 and a variance of 0, what must you conclude?

According to the definition of mean and variance, a mean of 25 and a variance of 0 implies that all the elements in that population are equal to 25.

Step-by-step explanation:

Given :

Mean,

Variance,

Solution :

Variance -

Variance measures how far each number in the set is from the mean and thus from every other number in the set.

Mean -

Adding all numbers in the data set and then dividing by the number of values in the set.

According to the definition of mean and variance, a mean of 25 and a variance of 0 implies that all the elements in that population are equal to 25.

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answer is more than one

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: