Janet Is Planning to Rent a Booth at a Festival

question 29

Multiple Choice

Janet is planning to rent a booth at a festival for a day to sell clothes that she has made.She sells jackets for $80 and skirts for $50.Her past experiences suggests that sales of jackets will have a mean of 6.5 with a standard deviation of
,and sales of skirts will have a mean of 12.6 with a standard deviation of
.The cost of renting the booth for the day is $180.Let the random variable J represent the number of jackets that Janet sells and the random variable S represent the number of skirts that Janet sells.Then Janet's net income,I,is given by the expression:
I = 80J + 50S - 180
Find an expression for the standard deviation of Janet's net income.Assume that sales are independent of each other.

• A)σ = 80 + 50
• B)σ =
• C)σ =
• D)σ =
• E)σ = 80 + 50 - 180

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Definitions:

Pueblo Rituals

Traditional ceremonies and practices of the Pueblo Indigenous peoples, deeply rooted in their spiritual beliefs, cultural heritage, and connection to the environment.

Popé

A Pueblo religious leader who led a successful revolt against Spanish colonizers in New Mexico in 1680.

Monogamy

A relationship or marriage system where an individual has only one partner at a time.

Christian Names

Traditionally, given names selected from the Bible or derived from saints and other Christian religious figures, commonly used in Christian families.