Question

The mean monthly rent of students at Oxnard University is $890 with a standard deviation of $206. John's rent is $1,395. What is his standardized z-score?

Answer 1

$299

Explanation:

Rent+standard deviation 890+206= $1,096

John's rent: $1,395

Z-score: 1395 - 1096=$299

Answer 2

Answer: 2.4515

Explanation:

Given : The mean monthly rent of students at Oxnard University is
`\mu=\$890` with a standard deviation of
`\sigma=\$206`

Using the formula ,
`z=(x-\mu)/(\sigma)`, we have the standardized z-value for x= 1395 as

`z=(1395-890)/(206)=2.45145631068\approx2.4515\ \text{ [To the nearest four decimal places.]}`

Hence, the standardized z-score = 2.4515