Assume That a Researcher Randomly Selects 14 Newborn Babies and Counts

question 147

Multiple Choice

Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using
the table.
$$\begin{array}{l}\text {\quad\quad\quad\quad\quad\quad\quad\quad Probabilities of Girls }\\\begin{array} { c | c | c | c | c | c } x ( \text { girls) } & P ( x ) & x \text { (girls) } & P ( x ) & x \text { (girls) } & P ( x ) \\\hline 0 & 0.000 & 5 & 0.122 & 10 & 0.061 \\1 & 0.001 & 6 & 0.183 & 11 & 0.022 \\2 & 0.006 & 7 & 0.209 & 12 & 0.006 \\3 & 0.022 & 8 & 0.183 & 13 & 0.001 \\4 & 0.061 & 9 & 0.122 & 14 & 0.000\end{array}\end{array}$$
-Find the probability of selecting exactly 4 girls.

• A) 0.122
• B) 0.061
• C) 0.022
• D) 0.001

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Definitions:

Urine Volume

The amount of urine excreted by the kidneys over a given period of time, an indicator of hydration status and kidney function.

Antidiuretic Hormone

A hormone produced by the pituitary gland that regulates the balance of water in the body by reducing the amount of water excreted in the urine.

ADH Secretion

The release of antidiuretic hormone, which plays a key role in regulating water balance in the body.

Growth Hormone

A hormone that stimulates growth, cell reproduction, and cell regeneration in humans and other animals.