Chinu listed the various means of transport that passed across the road in front of his house from 9 AM to 10 AM:
Prepare a frequency distribution table for the data.
Frequency distribution table: Bike: 12, Car: 5, Bus: 4, Auto: 8, Bicycle: 7, Scooter: 7, Bullock cart: 2. Total observations: 45 vehicles.
Which means of transport was used the most?
Bike was the most used means of transport with 12 occurrences, which is the highest frequency among all transport types.
If you were there to collect this data, how could you do it? Write the steps or process.
To collect this data: 1) Choose a specific location and time period for observation, 2) Prepare a list of expected transport types, 3) Stand at the location and observe each vehicle passing by, 4) Use tally marks to record each vehicle type in real-time, 5) Continue for the designated time period, 6) Count the tallies to get final frequencies.
Explanation
(a) Count each type: bike appears 12 times, car appears 5 times, bus appears 4 times, auto appears 8 times, bicycle appears 7 times, scooter appears 7 times, bullock cart appears 2 times. (b) Comparing frequencies: Bike (12) > Auto (8) > Bicycle (7) = Scooter (7) > Car (5) > Bus (4) > Bullock cart (2). Bike has the highest frequency. (c) The chapter emphasizes systematic data collection using tally marks for real-time recording, which is efficient and accurate for observational studies.