Find the Mean of the Random Variable A) $1.771$ B) $1.479$ C) $2.5$

question 147

Multiple Choice

Find the mean of the random variable.
-The random variable X is the number of siblings of a student selected at random from a particular secondary school. Its probability distribution is given in the table. Round the answer to three
Decimal places when necessary. $\begin{array}{r|cccccc}\mathrm{x} & 0 & 1 & 2 & 3 & 4 & 5 \\\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & \frac{7}{24} & \frac{7}{24} & \frac{3}{16} & \frac{7}{48} & \frac{1}{24} & \frac{1}{24}\end{array}$

• A)\(1.771\)
• B) \(1.479\)
• C) \(2.5\)
• D) \(1.375\)

---

Definitions:

De Facto Corporation

Latin for “corporation in fact”; a corporation that has not substantially met the requirements of the state incorporation statutes.

Corporation By Estoppel

A defective corporation that has conducted business with a third party and therefore cannot deny its status as a corporation to escape liability.

De Jure Corporation

Latin for “lawful corporation”; a corporation that has met the mandatory statutory provisions and thus received its certificate of incorporation.

Alien Corporation

A business that is incorporated in a foreign country.