To find out how many bad light bulbs are in the batch of 22,158 light bulbs, you can use the given ratio of bad light bulbs (3 out of 268).
First, calculate the proportion of bad light bulbs:
\[ \text{Proportion of bad light bulbs} = \frac{3}{268} \]
Next, multiply this proportion by the total number of light bulbs produced:
\[ \text{Number of bad light bulbs} = \frac{3}{268} \times 22,158 \]
Now, perform the calculation:
\[ \text{Number of bad light bulbs} = \frac{3 \times 22,158}{268} \approx \frac{66,474}{268} \approx 247.78 \]
Since the number of bad light bulbs must be a whole number, you can round this to \( 248 \).
So, the number of bad light bulbs is approximately 248.