Sociologists model the spread of rumors using logistic equations. The key assumption is that at any given time a fraction y of the population, where 0sys1, knows the rumor, while the remaining fraction 1-y does not. Furthermore, the rumor spreads by interactions between those who know the rumor and those who do not. Th number of such interactions is proportional to y(1-y). Therefore, the equation that describes the spread of the rumor is y'(t)= ky(1-y), where k is a positive real number. The fraction of people who initially know the rumor is y(0) = Yo, where 0syo s 1. Complete parts (a) to (c) below. ..... a. Solve this initial value problem and give the solution in terms of k and yo- Start by writing y'(t) =ky(1-y) in separated form.
Sociologists model the spread of rumors using logistic equations. The key assumption is that at any given time a fraction y of the population, where 0sys1, knows the rumor, while the remaining fraction 1-y does not. Furthermore, the rumor spreads by interactions between those who know the rumor and those who do not. Th number of such interactions is proportional to y(1-y). Therefore, the equation that describes the spread of the rumor is y'(t)= ky(1-y), where k is a positive real number. The fraction of people who initially know the rumor is y(0) = Yo, where 0syo s 1. Complete parts (a) to (c) below. ..... a. Solve this initial value problem and give the solution in terms of k and yo- Start by writing y'(t) =ky(1-y) in separated form.
Chapter6: Exponential And Logarithmic Functions
Section6.8: Fitting Exponential Models To Data
Problem 2TI: Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time...
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