Part-B A financial analyst writes a report on ALDI based on the research, assigns the following probabilities to next year's forecasted sales:

Scenario	Probability	Sales ($ Millions)
1	0.1	16
2	0.3	15
3	0.3	14
4	0.3	13

Question

Calculate volatility of the market based on the analysis given above.

Explain how a company can review the forecast and made it more accurate.