What is the best estimate for the sum if 3/8 and 1/12

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.

Use set buikder notation to represent the following set: {, -2, -1, 0}

What kind of bond pays interest which is exempt from tax?