In the data set, what is the variance? 6 8 1 9 4

The variance is 8.24

Step-by-step explanation:

we have

set of data

step 1

Find the mean

Adds the values and divide by the number of values

step 2

for each number: subtract the Mean and square the result

step 3

work out the mean of those squared differences

----> this value is called the "Variance"

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: