Checking Accounts a Bank Has Determined That the Monthly Balances of the Balances

question 4

Short Answer

Checking Accounts
A bank has determined that the monthly balances of the checking accounts of its customers are normally distributed with an average balance of $1,200 and a standard deviation of $250. ​ ​
-{Checking Accounts Narrative} What proportion of customers have monthly balances more than $1,125?

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Definitions:

Complex Behavior

Actions or conduct that involve multiple factors, including cognitive, social, and emotional components, making them more sophisticated than simple reflexes.

Homeostasis

The process by which living organisms regulate their internal environment to maintain stable, life-supporting conditions.

Constant Internal State

The concept of maintaining a stable, consistent internal environment in an organism, also known as homeostasis.

An Instinct

An innate, typically fixed pattern of behavior in animals in response to certain stimuli that is unlearned.