For the Population of One Town, the Number of Siblings $\bar { x }$

question 5

Multiple Choice

For the population of one town, the number of siblings is a random variable whose relative frequency histogram has a reverse J-shape. Let $\bar { x }$ denote the mean number of siblings for a random sample of size 3 . For samples of size 3 , which of the following statements concerning the sampling distribution of the mean is true?

• A)The distribution of \(\bar { x }\) has a reverse J-shape.
• B) \(\bar { x }\) is approximately normally distributed.
• C) \(\bar { x }\) is normally distributed.
• D) None of the above statements is true.

---

Definitions:

DNA Replication

The procedure through which a double-stranded DNA molecule duplicates, resulting in two identical DNA molecules.

Interphase

The phase of the cell cycle in which a cell spends most of its life, preparing for cell division by replicating its DNA and increasing in size.

Cytoplasm Divides

The process during cell division where the cytoplasm of a parent cell is split and distributed into two new daughter cells.

Contractile Ring

A structure made of actin filaments that constricts the cytoplasm during cell division, leading to cytokinesis.