The ratio of employee wages and benefits to all other operational costs of a business is 2:3. If a business operates expeses are
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You can see that the function is graphed for every number x that is greater than or equal to zero.
So we write that the domain is
.
So we write that the domain is
Let X be the weekly incomes of a large group of executives. The weekly incomes of a large group of executives follows Normal distribution with mean $2000 and standard deviation $100.
μ =2000, σ =100
We have to find z score for income $2100 i.e x=2100
Z =
=
Z = 100/100
Z = 1
The z score for income $2100 is 1