To find the actual number of office workers who said they do not make personal phone calls, you can use the given percentage and total number of respondents.
- Identify the total number of respondents: 1000
- Identify the percentage who do not make personal phone calls: 4.8%
Now, calculate the actual number of respondents:
\[ \text{Number of respondents} = \left( \frac{4.8}{100} \right) \times 1000 \]
Calculating this gives:
\[ \text{Number of respondents} = 0.048 \times 1000 = 48 \]
So, the actual number of office workers who said they do not make personal phone calls is 48. Since it's already an integer, there is no need to round up further.
Final answer: 48 office workers.