Sandy's Pet Center Grooms Large and Small Dogs

question 78

Essay

Sandy's Pet Center grooms large and small dogs.It takes Sandy 40 minutes to groom a small dog and 70 minutes to groom a large dog.Large dogs account for 20% of Sandy's business.Sandy has 5 appointments tomorrow.
a.What is the probability that all 5 appointments tomorrow are for small dogs?
b.What is the probability that two of the appointments tomorrow are for large dogs?
c.What is the expected amount of time to finish all five dogs tomorrow?

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Definitions:

Intimate

Characterized by a close personal association or familiarity, often relating to personal or private matters.

Personal

Relating to or affecting a particular individual directly, distinct from others.

Social

Relating to society or its organization, or the interactions and relationships between individuals within a community.

Public

The general population or community at large, often referred to in the context of public opinion or public spaces.