Suppose we want to choose 2 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair. (a)
How many ways can this be done, if the order of the choices is taken into
consideration?

How many ways can this be done, if the order of the choices is not taken into
(b) consideration?

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.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

How do you determine if an ordered pair is a solution to a given equation?