A Local Bank Has Determined That the Daily Balances of the Checking

question 53

Essay

A local bank has determined that the daily balances of the checking accounts of its customers are normally distributed with an average of $280 and a standard deviation of $20.
a.What percentage of its customers has daily balances of more than $275?
b.What percentage of its customers has daily balances less than $243?
c.What percentage of its customers' balances is between $241 and $301.60?
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Definitions:

Inequality

An algebraic relationship indicating that one quantity is larger or smaller than another.

Inequality

A mathematical statement indicating that two expressions are not equal, often involving signs such as > (greater than), < (less than), ≥ (greater than or equal to), or ≤ (less than or equal to).

Inequality

A mathematical relationship between two expressions that are not equal, using symbols such as <, >, ≤, or ≥.

Given Graph

Refers to a particular graph that has been presented or specified in a problem or context.