You conduct a simulation to calculate probability of extinction of a population of 100 individuals over 500 years. You are given mean and variance in annual lambdas, as well as initial population sizes and a quasi-extinction threshold. You run 1000 simulations, and in 670 of those simulations, the population size eventually falls below the quasi-extinction threshold. What is the probability of extinction of this population? What 2 factors could you change in your simulation to make this probability smaller?

Note: strictly prohibited handwritten solution I need step by step solution in typed form and also mentioned the final answer.