Determine Whether the Following Is a Probability Distribution

question 143

Essay

Determine whether the following is a probability distribution. If not, identify the requirement that is not satisfied.
-If a person is randomly selected from a certain town, the probability distribution for the number, x, of siblings is as described in the accompanying table.
$$\begin{array} { c | c } \mathrm { x } & \mathrm { P } ( \mathrm { x } ) \\\hline 0 & 0.27 \\1 & 0.28 \\2 & 0.23 \\3 & 0.10 \\4 & 0.06 \\5 & 0.02\end{array}$$

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Definitions:

Depositary Bank

A financial institution that holds and manages securities for its clients, facilitating the trading of these securities.

Payor Bank

The bank that is directed by a check or draft to pay a certain amount of money to the person or entity named on the check.

On-Us Item

A banking term referring to a check or draft that is presented for payment by the same bank upon which it is drawn.

Stale Check

A check that is not presented to a bank within six months of its date.