Find the probability 
using the standard normal distribution.
Definitions:
Inflation Rate
The annual rate at which the cost of goods and services rises within an economy, reflecting a growth in price levels over time.
Price Level
An indicator of the mean cost of goods and services within an economy at a particular moment.
Money-Supply Curve
A graphical representation showing the relationship between the quantity of money supplied and the interest rate.
Open-Market Sale
The selling of government securities in the open market to reduce the money supply and control inflation.
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