Instruction 6-4 John Has Two Jobs.For Daytime Work at a Jewelry Store

question 57

Short Answer

Instruction 6-4
John has two jobs.For daytime work at a jewelry store he is paid $15,000 per month,plus a commission.His monthly commission is normally distributed with mean $10,000 and standard deviation $2,000.At night he works as a waiter,for which his monthly income is normally distributed with mean $1,000 and standard deviation $300.John's income levels from these two sources are independent of each other.
-Referring to Instruction 6-4,John's income as a waiter will be between what two values symmetrically distributed around the population mean 80% of the time?

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Bird

A warm-blooded, vertebrate animal characterized by feathers, beaks, and typically the ability to fly.

Bird-Like

Describing characteristics or features that resemble those of birds, such as having feathers, beaks, or the ability to fly.

Case

An instance or occurrence of a particular type or category, often used to study or analyze specific characteristics or outcomes.

Actor

An individual who performs in theatrical productions, films, or television shows, portraying characters.