What is the mean for this list of numbers? 4, 8, 18

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.

Find an equation for the linear function which has slope -10 and x-intercept -7

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2