On a true/false test, the ratio of true questions to false questions is 3 to 7. What is the ratio of true questions to total questions?
O 3 to 10
07 to 3
O 3 to 7
0 4 to 7

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.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Which of the following is the shape of a cross section of the figure shown below