How is probability used in inferential statistics? A researcher uses probability to calculate the mean value of a sample. A researcher uses probability to decide whether to draw a sample from a population. A researcher uses probability to help her decide whether she believes a treatment has had an effect.

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

answer: your answer is c

step-by-step explanation:

answer is b chief keef

get this one right