If P is the price index. How can you estimate the inflation rate? (Multiple answers may be right.)Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer.aInflationt=Pt-Pt-1/PtbInflation=(Pt-Pt-1)/Pt-1cInflation=Pt-Pt-1-1dInflation=Pt/Pt-1-1

The correct formula to estimate the inflation rate using the price index (P) is:

b) Inflation = (Pt - Pt-1) / Pt-1

This formula calculates the percentage change in the price index from one period to the next, which is the definition of inflation.

Option a) is incorrect because it does not divide by the previous period's price index, Pt-1, which is necessary to calculate a percentage change.

Option c) is incorrect because it subtracts 1 from the difference in price indices, which is not part of the formula for calculating inflation.

Option d) is incorrect because it divides the current price index by the previous one and then subtracts 1. This would give the rate of change, but not the percentage change, which is what inflation measures.

The correct formula to estimate the inflation rate using the price index (P) is:

b) Inflation = (Pt - Pt-1) / Pt-1

This formula calculates the percentage change in the price index from one period to the next, which is the definition of inflation.

Option a) is incorrect because it does not divide by the previous period's price index, Pt-1, which is necessary to calculate a percentage change.

Option c) is incorrect because it subtracts 1 from the difference in price indices, which is not part of the formula for calculating inflation.

Option d) is incorrect because it divides the current price index by the previous one and then subtracts 1. This would give the proportional change, not the percentage change.