Finding the Probability Distribution

Addison sells 100 tickets for \[tex]$10 each for a raffle. There is 1 award for \$[/tex]100, 4 awards for \[tex]$50, and 10 awards for \$[/tex]30. The remaining proceeds go to hosting the contest. Which table correctly displays the probability distribution?

\begin{tabular}{|c|c|}
\hline \multicolumn{2}{|c|}{\begin{tabular}{c}
Distribution \\
of Awards
\end{tabular}} \\
\hline Prize & [tex]$P(x)$[/tex] \\
\hline none & 0.85 \\
\hline \[tex]$30 & 0.10 \\
\hline \$[/tex]50 & 0.04 \\
\hline \$100 & 0.01 \\
\hline
\end{tabular}



Answer :

To analyze the probability distribution for this raffle, let's take a step-by-step approach to determine the probability of each possible outcome: winning no award, an award of [tex]$30, $[/tex]50, or [tex]$100. 1. Determine the total number of tickets: - Addison sells a total of 100 tickets. 2. List the number of each type of award: - 1 prize of $[/tex]100
- 4 prizes of [tex]$50 - 10 prizes of $[/tex]30

3. Calculate the probability of winning each type of prize:
- Probability of winning [tex]$100: - There is 1 prize out of 100 tickets. \[ \text{Probability} = \frac{1}{100} = 0.01 \] - Probability of winning $[/tex]50:
- There are 4 prizes out of 100 tickets.
[tex]\[ \text{Probability} = \frac{4}{100} = 0.04 \][/tex]

- Probability of winning [tex]$30: - There are 10 prizes out of 100 tickets. \[ \text{Probability} = \frac{10}{100} = 0.10 \] 4. Calculate the probability of not winning any award: - Total prizes being awarded are 1 (for $[/tex]100) + 4 (for [tex]$50) + 10 (for $[/tex]30) = 15 prizes.
- The rest of the tickets (100 - 15 = 85) do not win any prize.
[tex]\[ \text{Probability of not winning} = \frac{85}{100} = 0.85 \][/tex]

5. Summarize the probability distribution in a table:

[tex]\[ \begin{array}{|c|c|} \hline \multicolumn{2}{|c|}{\text{Distribution of Awards}} \\ \hline \text{Prize} & P(x) \\ \hline \text{None} & 0.85 \\ \hline \$30 & 0.10 \\ \hline \$50 & 0.04 \\ \hline \$100 & 0.01 \\ \hline \end{array} \][/tex]

This table correctly displays the probability distribution for the raffle. Each probability value reflects the chance of a ticket being associated with winning a specific prize or not winning at all.