Plz help I’m begging u plz don’t guess I’ll give brainliest I promise but plz hep

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

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.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer