Get the answers you've been looking for with the help of IDNLearn.com's expert community. Our community is here to provide the comprehensive and accurate answers you need to make informed decisions.

In a class of students, the following data table summarizes how many students play an instrument or a sport. What is the probability that a student chosen randomly from the class plays neither a sport nor an instrument?

\begin{tabular}{|c|c|c|}
\hline
& \begin{tabular}{c}
Plays an \\
instrument
\end{tabular} & \begin{tabular}{c}
Does not play \\
an instrument
\end{tabular} \\
\hline
\begin{tabular}{c}
Plays a \\
sport
\end{tabular} & 8 & 3 \\
\hline
\begin{tabular}{c}
Does not \\
play a \\
sport
\end{tabular} & 11 & 5 \\
\hline
\end{tabular}


Sagot :

To determine the probability that a student chosen randomly from the class plays neither a sport nor an instrument, we'll go through a step-by-step process:

1. Extract the given data from the table:

- Number of students who play both a sport and an instrument: 8
- Number of students who play a sport but do not play an instrument: 3
- Number of students who do not play a sport but play an instrument: 11
- Number of students who neither play a sport nor an instrument: 5

2. Calculate the total number of students in the class:

Sum all the students:
[tex]\[ \text{Total students} = 8 + 3 + 11 + 5 = 27 \][/tex]

3. Identify the number of students who play neither a sport nor an instrument:

From the data, this number is given directly:
[tex]\[ \text{Students who play neither sport nor instrument} = 5 \][/tex]

4. Calculate the probability:

The probability is given by the number of students who play neither a sport nor an instrument divided by the total number of students:
[tex]\[ \text{Probability} = \frac{\text{Number of students who play neither sport nor instrument}}{\text{Total number of students}} = \frac{5}{27} \][/tex]

5. Simplify the fraction (if possible):

Here, [tex]\(\frac{5}{27}\)[/tex] is already in its simplest form.

6. Convert the fraction to a decimal (if necessary):

[tex]\[ \frac{5}{27} \approx 0.18518518518518517 \][/tex]

So, the probability that a student chosen randomly from the class plays neither a sport nor an instrument is approximately [tex]\(0.1852 \text{ or } 18.52\% \)[/tex].