I think that for the average startup your chance of success would improve in a statistically significant way but this would be really hard to quantify as if you get into YC you were probably already more likely to succeed on your own anyway.
It also depends a lot on how success is defined, in the return on investment for investors or in how it effects/improves the founders/employees lives. Getting a talent acquisition and working on something awesome at Facebook or similar could be a big success for the founders even though there is little there for the investors.
It also depends a lot on how success is defined, in the return on investment for investors or in how it effects/improves the founders/employees lives. Getting a talent acquisition and working on something awesome at Facebook or similar could be a big success for the founders even though there is little there for the investors.