A sample of 2,000 individuals from a human population was scored for MN blood group. The following frequencies were found: 1,600 MM, 250 MN, and 150 NN. How do these numbers compare to those expected under Hardy–Weinberg equilibrium?

Hardy Weinbergs equilibrium(HWE) states genetic variation in a population will remain constant in disturbing factors absence. It also talks about the sum of frequency of both alleles being 100 percent.

In the sample given above the total s of individuals is 2,000. The result of MM+MN+NN (1,600+250+150) gives 2,000 which is a 100 percent and satisfies Hardy Weinbergs equilibrium