A lake contains g gudgeon and r roach. You catch a sample of size n, on the understanding that roach are returned to the lake after being recorded, whereas gudgeon are retained in a keep-net.

1.Find the probability that your sample includes k gudgeon

2.Show that as r and g increase in such a way that g/(g + r) ? p , the probability distribution tends to the binomial.

> A lake contains 9 m and r roach. You catch a sample of size n, on the understanding that roach are returned to the lake after being recorded, whereas gudgeon are retained in a keep-net. e' 1. Find the probability that your sample includes k 9515199913. e' 2. Show that as r and 9 increase in such a way that 949 + r) > p , the probability distribution tends to the binomial. e