A Normal Distribution Has Mean $\mu$ =60 and Standard Deviation $\sigma$ =20 Find and Interpret the Z-Score for X=90

question 54

Multiple Choice

A normal distribution has mean $\mu$ =60 and standard deviation $\sigma$ =20 . Find and interpret the z-score for x=90.

• A) z=-1.50 : a value of 90 is 1.50 standard deviations below the mean.
• B) z=10 : a value of 90 is 10 standard deviations below the mean.
• C) z=1.50 : a value of 90 is 1.50 standard deviations above the mean.
• D) z=2.25 : a value of 90 is 2.25 standard deviations above the mean.

---

Definitions:

Insurer

A company or entity that provides insurance policies to protect against financial losses.

Deductible

A fixed dollar amount that must be paid by the insured before additional expenses are covered by an insurer.

Liability Insurance

A type of insurance that covers injuries caused by the insured or injuries that occurred on the insured’s property.

Insured

Covered by insurance, offering protection against financial loss or damage.