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The rate of spread of corona in Ghana after five days is given in the table below.

Day 1 2 3 4 5

Number of Infection 2 3 6 11 18

i) Explain the linear model that can be used to predict the processing time of the system

ii) Another scientists decided to model the rate of spread using f(t) = 2^(0.8t) , where t is time in days. Whose model will be more valid given the real life data in Ghana? Discuss why the chosen model is more valid and the other is not.

iii) What will be the relative error committed using the simulation model by the scientist or yourself on the sixth day.

Note: Use estimate from the more valid model as actual value

Note: Relative error = (approximate value- actual value)*100%

actual value