A medical company tested a new drug on 100 people for possible side effects. This table shows the results.

\begin{tabular}{|l|c|c|c|}
\hline
& Side effects & No side effects & Total \\
\hline
Adults & 6 & 44 & 50 \\
\hline
Children & 20 & 30 & 50 \\
\hline
Total & 26 & 74 & 100 \\
\hline
\end{tabular}

Compare the probability that an adult has side effects with the probability that a child has side effects. Draw a conclusion based on your results.



Answer :

To solve this problem, we need to calculate the probability of experiencing side effects for both adults and children separately and then compare these probabilities.

### Step 1: Probability Calculation for Adults

The table shows that there are 6 adults who experienced side effects out of a total of 50 adults. The probability [tex]\( P(\text{Side effects | Adult}) \)[/tex] can be calculated using the formula:

[tex]\[ P(\text{Side effects | Adult}) = \frac{\text{Number of adults with side effects}}{\text{Total number of adults}} \][/tex]

Using the values from the table:

[tex]\[ P(\text{Side effects | Adult}) = \frac{6}{50} = 0.12 \][/tex]

### Step 2: Probability Calculation for Children

Similarly, the table shows that there are 20 children who experienced side effects out of a total of 50 children. The probability [tex]\( P(\text{Side effects | Child}) \)[/tex] can be calculated using the formula:

[tex]\[ P(\text{Side effects | Child}) = \frac{\text{Number of children with side effects}}{\text{Total number of children}} \][/tex]

Using the values from the table:

[tex]\[ P(\text{Side effects | Child}) = \frac{20}{50} = 0.4 \][/tex]

### Step 3: Comparison of Probabilities

Now we compare the two probabilities we have calculated:

- Probability that an adult has side effects: 0.12
- Probability that a child has side effects: 0.4

### Conclusion

Based on these probabilities, we can conclude that children have a higher probability of experiencing side effects from the drug compared to adults. Specifically, the probability that a child experiences side effects (0.4) is greater than the probability that an adult experiences side effects (0.12).