In Feresa's valco game, she receives a treasure box for completing a mission. Each treasure box gives Feresa a special item. Every treasure box has a [tex]$58\%$[/tex] chance of having an amulet, an [tex]$18\%$[/tex] chance of having a wand, and a [tex]$24\%$[/tex] chance of having a ring.

Feresa wants to simulate what could happen for the next ten treasure boxes. For each treasure box, she generates a random whole number from 1 to 100.

(a) What is a range of values that Feresa can use to represent a treasure box having an amulet?
[tex]$\square$[/tex]

(b) Here is Feresa's simulation.

\begin{tabular}{|l|c|c|c|c|c|c|c|c|c|c|}
\hline
Treasure box & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\
\hline
Random number & 55 & 43 & 96 & 3 & 59 & 73 & 75 & 89 & 16 & 45 \\
\hline
\end{tabular}

Using your answer in part (a), find the percentage of the 10 simulated treasure boxes that had an amulet.
[tex]$\square$[/tex]



Answer :

Let's go through the problem step-by-step.

For part (a):

Teresa wants to know the range of values that represent a treasure box having an amulet. We know that there is a 58% chance of having an amulet. Since the random number generated will be a whole number between 1 and 100 (inclusive), she can use the range 1 to 58 to represent the amulet. Specifically:
[tex]\[ 1 \leq x \leq 58 \][/tex]

So the range of values that Teresa can use to represent a treasure box having an amulet is:
[tex]\[ \boxed{1 \text{ to } 58} \][/tex]

For part (b):

We are given the random numbers generated for 10 treasure boxes:
[tex]\[ 55, 43, 96, 3, 59, 73, 75, 89, 16, 45 \][/tex]

Using the range determined in part (a) ([tex]\(1 \text{ to } 58\)[/tex]), we need to count how many of these numbers fall within this range.

From the list:
- 55 (falls within the range 1 to 58)
- 43 (falls within the range 1 to 58)
- 96 (does not fall within the range 1 to 58)
- 3 (falls within the range 1 to 58)
- 59 (does not fall within the range 1 to 58)
- 73 (does not fall within the range 1 to 58)
- 75 (does not fall within the range 1 to 58)
- 89 (does not fall within the range 1 to 58)
- 16 (falls within the range 1 to 58)
- 45 (falls within the range 1 to 58)

So, there are 5 numbers (55, 43, 3, 16, 45) that correspond to an amulet.

To calculate the percentage of the 10 treasure boxes that contained an amulet:
[tex]\[ \text{Percentage of amulets} = \left( \frac{\text{Number of amulets}}{\text{Total number of boxes}} \right) \times 100 \][/tex]

Substituting the numbers we have:
[tex]\[ \text{Percentage of amulets} = \left( \frac{5}{10} \right) \times 100 = 50 \% \][/tex]

Therefore, the percentage of the 10 simulated treasure boxes that had an amulet is:
[tex]\[ \boxed{50\%} \][/tex]