Question: For information being spread by mass media, rather than through individual contact, the rate of spread of the information at any time is proportional to

For information being spread by mass media, rather than through individual contact, the rate of spread of the information at any time is proportional to the percentage of the population not having the information at that time. Give the differential equation that is satisfied by y = f (t), the percentage of the population having the information at time t. Assume that f(0) = 1. Sketch the solution.

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