4. Consider the following information on revenue collection and their probability for the upcoming financial year:

Type of Revenue Probability Revenue Target ($M)

Property tax 0.30 20

Motor Vehiclelicence 0.20 15

Customs Duty 0.15 30

Special Consumption Tax 0.35 10

Calculate the following

(a)Expected variance for next year revenue collection

(b)The variance of the proposed revenue collection.