2. A company has forecasted the following monthly requirements of an item, influenced by seasonal fac- tors in unit. The likely production days/months are also given as below:

(a) Prepare a chart showing the daily demand requirements.

(b) Plot the demand as a histogram.

(c) Determine the production rate required to meet average demand and plot this as a dotted line on the graph.

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Months Days Units Jan 20 200 Feb 19 380 Mar 22 440