In a study of genetic variation of the graceland gene, a researcher finds that there are two alleles in a population. in a large sample (500 individuals), the frequency of heterozygotes is 0.63. is the population in hardy-weinberg equilibrium?

No, Hardy Weinberg Equilibrium is a theory that states the allele and genotype frequencies in a population will remain constant irrespective of the sexs.

Explanation:

Derivations from the HWE Hardy Weinberg Equilibrium assume that organisms are diploid, population size is infinite, and mating is random. In all the equilibrium the four fundamental factors like the selection, mutation, random mating including interbreeding and small population size. So, if the number of heterozygotes is 34 then the significant level is 0.067. So higher the significance level higher is the heterozygotes. In the absence of selection and genetic drift, all the frequencies within variables are constant. This principle was named by G, H Hardy.

Well, a and b together would be negative. b alone would also be negative.