Lunchtime boom 40% of fast food orders happen between 12:30-3:30 PM.
The manager of a local fast food restaurant is attempting to schedule staff for the upcoming month. To ensure proper staffing, the manager reviews the number of transactions that occurred at various times of the day during the previous month. The table below summarizes the transactions.
| Restaurant Hours | Relative Frequency |
| 6:30 AM to 9:30 AM | 0.25 |
| 9:30 AM to 12:30 PM | 0.10 |
| 12:30 PM to 3:30 PM | 0.40 |
| 3:30 PM to 6:30 PM | 0.05 |
| 6:30 PM to 9:30 PM | 0.20 |
If 8000 transactions occurred during the previous month, determine the frequency of transactions that occurred between the hours of 12:30 PM and 3:30 PM.
To calculate the frequency of transactions that occurred between 12:30 PM and 3:30 PM, multiply the relative frequency for that time period by the total number of transactions.
Frequency = Relative Frequency * Total Transactions
Frequency = 0.40 * 8000 transactions
Frequency = 3200 transactions
Therefore, 3200 transactions occurred between 12:30 PM and 3:30 PM.