Running the SIR Model

[@stellapitsillidou7386]

How did you find constant 'a'?

[@austaft5261]

Where did the 140 number come from for the expression 2100/140?

[@lorenzosadun565]

@stella: That depends on what you mean by "find". In a real epidemic, you need to look at the data to discover the infection rate and the recovery rate. In this video, we just copied over the values that we deduced in the previous video "Modeling an Epidemic".

[@aishax]

best vid out there explaining this! thank you so much sir!

[@adminassistant4409]

Great vid! thank you. What are the steps to graphing these models? so we can see how they look compared to eachother

[@Rinaa966]

Thanks ! Very very good explanations ! Keep it up

[@Hhq7748]

Could you explain how to transfer data that is obtained from the formulas to a graph?

[@jenevievemcmurtry5378]

how would you find the constant "a" for the swine flu epidemic in 2009?

[@zahraal-agraa1621]

what does -0.00001 stand for in the equation?

[@fdlarts7676]

Thank you so much for this! You earned a subscriber :). I'm an IB math standard level student and using SIR model for my Zombie IA. I have one question, how did you get -00001?

[@NIZZEL117]

+Gargoyle Senior that is the probability to being infected per person

[@grivar]

I'm using it on my EE :P

[@fdlarts7676]

RE i used it on my IA. Got a 3 on math but at least it's over now

[@obadakurdi]

RE I want to use it for my IA in math do you advice me to start with it?

[@fdlarts7676]

lol idc

[@hayleylam3947]

Thank you so much you saved my life

[@Hhq7748]

Can you explain this very concept using easier terms that highschoolers would understand?

[@ramirocampoverde1526]

Gracias

[@danieladuane7641]

Hi, I know I'm a bit late to the party, but, when you were finding the rate of change of the infected, why didn't you multiply the 953.4 by 0.00001, like it says in the formula.

[@lindayamamoto890]

Is there a video where you solve the equations in closed form? If I define J = ln( I ), I can boil it down to J" = a ( J' + b ) exp( J ).

[@hayleylam3947]

sorry, what is the 140 in 2:23 ?

[@HG-ft3bz]

You're the best

[@maryamahmad9401]

i found the constant from this 100*number of infected/number of pouplistion .. is it correct??

[@maryamahmad9401]

but the result come out of rang poulation

[@heyimatwilightfreak]

how did you find constant a?

[@vicentegarcia1383]

i love u