Which of the following error ranges would be the most reliable?
a. ±12 percentage points
b. ±7 percentage points
c. ±2 percentage points
d. ±17 percentage points

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

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.

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?