Thenumberofaccidentsforsevendaysinalocalityaregivenbelow: No.ofacciden...
Number of Cases when 3 or Less Accidents Occurred
To find the number of cases when 3 or less accidents occurred, we need to add up the frequencies of accidents for 0, 1, 2, and 3 accidents. Let's break down the calculation step by step.
Step 1: Identify the Frequency for Each Accident Count
- Number of Accidents: 0
- Frequency: 12
- Number of Accidents: 1
- Frequency: 15
- Number of Accidents: 2
- Frequency: 23
- Number of Accidents: 3
- Frequency: 30
Step 2: Add Up the Frequencies
To find the total number of cases when 3 or less accidents occurred, we need to add up the frequencies for 0, 1, 2, and 3 accidents:
Total frequency = Frequency for 0 accidents + Frequency for 1 accident + Frequency for 2 accidents + Frequency for 3 accidents
Total frequency = 12 + 15 + 23 + 30
Total frequency = 80
Step 3: Interpretation
Therefore, there were a total of 80 cases when 3 or less accidents occurred in the locality over the seven-day period.
Conclusion
In conclusion, to find the number of cases when 3 or less accidents occurred, we added up the frequencies for 0, 1, 2, and 3 accidents. The total frequency was found to be 80.