A bottling company offers three kinds of delivery service: instant, same day, and within five days. The profit per delivery varies according to the kind of delivery. The profit for an instant delivery is less than the other kinds because the driver has to go directly to a grocery store with a small load and return to the bottling plant. To find out what effect each type of delivery has on the profit picture, the company summarized the data in the following table based on deliveries for the previous quarter. 
What is the weighted mean profit per delivery?
Definitions:
Intellectual Change
The process in which cognitive abilities, thinking, problem-solving skills, and knowledge evolve over time due to various factors including age, experience, and education.
Adulthood
A stage of human development characterized by full physical development and maturity, typically involving increased responsibility and independence.
Research Design
The overall strategy that a researcher chooses to integrate the different components of the study in a coherent and logical way, ensuring effectively address the research problem.
Testosterone Deficiency
A medical condition in which the body doesn’t produce enough testosterone, a primary sex hormone in males, leading to various health issues.
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