Suppose the Distribution of Personal Daily Water Usage in New

question 117

Multiple Choice

Suppose the distribution of personal daily water usage in New York City is normally distributed with a mean of 15 gallons and a variance of 25 gallons.Because of a current problem with the distribution of water to its citizens,the mayor wants to give a city tax rebate to the 15 percent of the population who use the least amount of water.What should he use as the water limit for a person to qualify for a city tax rebate?

• A)9.825
• B)15.00
• C)12.20
• D)10.25

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Definitions:

Cognitive Development

The process by which individuals acquire and understand knowledge, including thinking, problem-solving, and decision-making, through various stages of growth.

Jean Piaget

A Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development in children.

Strange Situation

A procedure developed by Mary Ainsworth in the 1970s to observe attachment relationships between a caregiver and child.

Experiment

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.