I the Random Variable for a Poisson Probability Distribution Is $\pi$

question 20

Multiple Choice

i. The random variable for a Poisson probability distribution is discrete. ii. The Poisson probability distribution is always negatively skewed.
iii. The Poisson probability distribution has the same four characteristics as the binomial, but in addition, the probability of a success ( $\pi$ ) is small and the number of trials (n) is relatively large.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Study Habits

Patterns and practices that are conducive to effective learning and information retention.

Causal Inference

The process of drawing conclusions about causal relationships based on the conditions of the occurrence of an effect.

Quasi-experimental Designs

Research designs that attempt to establish cause-and-effect relationships but lack random assignment to treatment and control groups.

Random Assignment

The allocation of study participants to different groups by chance, minimizing pre-existing differences between those groups.