ASAP PLZ! Everything is in the picture!

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.

Which of the following represents a function? 50 !

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.