Question

QUESTION ONE (20 Marks) 1.1 What are the advantages of observation and its limitations as a method of collecting (6 marks) nformation? 1.2 State TWO (2) advantages of primary data 1.3 Explain any TWO (2) differences between a bar chart and histogram. 1.4 The capacities (in millions of litres) of each of the four major storage dams that supply (2 marks) (2 marks) the water requirements of Cape Town are shown in the table 1.1 below Storage Dam Capacity (MI) Wemmershoek158 644 Steenbras Voelvlei Theewatersloof440 255 Table: 1.1 95 284 244 122 1.4.1 Construct a pie chart showing the percentage of water supplied by each storage dam 1.4.2 What percentage of Cape Town's water supply is provided by (5 marks) 1.4.2.1 Voelvlei dam? 1.422 Wemmershoek and Steenbras dams together? (1 mark) (2 marks) 1.5 Define the term trend' as used in Time Series Analysis and Forecasting. (2 marks)

Answer 1

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