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Question 14 (Multiple Choice, Worth 2 points)

Louis rolled a fair six-sided die and recorded the number that was facing up. He continued this for a total of 60 rolls. The table shows the frequency of each number rolled.

\begin{tabular}{|l|l|l|l|l|l|l|}
\hline Outcome & 1 & 2 & 3 & 4 & 5 & 6 \\
\hline Frequency & 8 & 11 & 6 & 14 & 9 & 12 \\
\hline
\end{tabular}

Based on the table, what is the experimental probability that the number rolled was odd?

A. [tex]$\frac{1}{2}$[/tex]

B. [tex]$\frac{5}{12}$[/tex]

C. [tex]$\frac{23}{60}$[/tex]

D. [tex]$\frac{37}{60}$[/tex]


Sagot :

To determine the experimental probability that the number rolled was odd, we can follow these steps:

1. Determine the total number of rolls:
According to the given table, the total number of rolls is the sum of all the frequencies of the outcomes:
[tex]\[ 8 + 11 + 6 + 14 + 9 + 12 = 60 \][/tex]
So, the total number of rolls is [tex]\( 60 \)[/tex].

2. Determine the total frequency of rolling an odd number:
The odd numbers on a six-sided die are 1, 3, and 5. From the table, we can see the frequencies for these outcomes:
[tex]\[ \text{Frequency of } 1 = 8 \][/tex]
[tex]\[ \text{Frequency of } 3 = 6 \][/tex]
[tex]\[ \text{Frequency of } 5 = 9 \][/tex]
Thus, the total frequency of rolling an odd number is:
[tex]\[ 8 + 6 + 9 = 23 \][/tex]

3. Calculate the experimental probability of rolling an odd number:
Probability is determined as the ratio of the number of successful outcomes to the total number of outcomes. Hence, the experimental probability of rolling an odd number is:
[tex]\[ \frac{\text{Total frequency of rolling an odd number}}{\text{Total number of rolls}} = \frac{23}{60} \][/tex]

Therefore, based on the table, the experimental probability that the number rolled was odd is [tex]\( \frac{23}{60} \)[/tex].

The correct answer is [tex]\(\frac{23}{60}\)[/tex].