Explain Why the Following Is or Is Not a Valid $$\begin{array} { | c | c | c | c | c | c | } \hline x & 10 & 20 & 30 & 40 & 50 \\\hline p ( x ) & .3 & .2 & .2 & .2 & .2 \\\hline\end{array}$$

question 8

Essay

Explain why the following is or is not a valid probability distribution for the discrete
random variable x. $$\begin{array} { | c | c | c | c | c | c | } \hline x & 10 & 20 & 30 & 40 & 50 \\\hline p ( x ) & .3 & .2 & .2 & .2 & .2 \\\hline\end{array}$$

Know how to apply formatting properties to report controls.

Understand how to add and format page numbers, dates, and totals in reports.

Understand the concepts of test validity and reliability.

Identify methods for determining the predictive validity of a test.

---

Definitions:

Oxidize

A chemical reaction in which a substance loses electrons or hydrogen, often involving the addition of oxygen or the removal of hydrogen.

Muzzle Flash

The visible blast of flame and light produced at the muzzle of a firearm when it is fired, caused by the rapid combustion of propellant.

Gunpowder

An explosive mixture of sulfur, charcoal, and potassium nitrate that historically revolutionized warfare.

Oxidation

Oxidation is a chemical reaction that involves the loss of electrons by a molecule, atom or ion.