2. All consumer goods and services are placed in one of three categories shown in the table 1 Calculate a} The simple Consumer Price Index {CPI}. {2 marks} b} If the weights for food clothing and housing were given as 8 4 and 3 respeclively, calculate the weighted Consumer Price index {CPI}. {2 mats} c} What is the advantage of weighted consumer price index over simple consumer price indent? {2 malts} d} "The price index is said to be 120'- What does this statement mean? {2 nuts} e} Explain briey TWO [2} problems in calculating Consumer Price Index {CPI} {2mm} {Total : 1o marks}