Which set of population data is the least dispersed from its mean?

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Atemperature of 1.64◦f corresponds to answer in units of ◦c.