Question

The mean monthly rent of students at Oxnard University is $810 with a standard deviation of $235. (a) John's rent is $1370. What is his standard z-score (round your answer to 3 decimal places

Answer 1

John's standard z-score is 2.383

Explanation:

We are given the following in the question:

Population mean, μ = $810

John's rent = $1370

Population standard deviation, σ = $235

Formula:

`z_(score) = \displaystyle(x-\mu)/(\sigma)`

Putting all the values, we have

`z_(score) = \displaystyle(1370 - 810)/(235) = 2.383`

John's standard z-score is 2.383