In how days we'll receive i-20 of an Average university

USA F1, F2 Visas - CPT - OPT
1 
In how many days i would receive i-20 from an average university ???

For instance :

1.jackson state university in Mississippi  TX

what are the chances of getting visa ?

 

2.San jose California state university ?

3.California state university in chico?

4.San Diego in california state system?

Am eagerly waiting for your replies .
2

Universities send out I-20s after the decision are made at school. It depedns on the deadlines and their processing times. You need to check with the schools for their cut off dates and internal processing times for sending I20. There is no fixed time frame. It can range from a month to 6 months or more.