Please help I'm really confused 25 POINTS

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.

27 is what percent of 108? 27 is % of 108

Which graph represents the same relation is the sa which graph represents the same relation as the set {(-3-2)}