Tamil Nadu HSE First Year Statistics case studies
Tamil Nadu HSE First Year Statistics · Put your knowledge to work in context.
The Tamil Nadu Higher Secondary First Year Statistics course is the Class 11 (+1) statistics subject offered under the state higher secondary curriculum. It suits students who have chosen the statistics stream and want a quantitative foundation before Class 12, and it is also useful for anyone building early skills in data handling, summarising data and basic inference. The Tamil Nadu HSE First Year Statistics case studies are 5 cases and about 2,312 words.
1Canteen Sales: Typical Day or Total Budget?
The government higher secondary school in a taluk town runs a canteen during the lunch break. For 11 consecutive school days the canteen’s daily sales (in ₹) were: 2,450; 2,510; 2,380; 2,600; 2,470; 2,550; 2,490; 2,430; 9,900; 2,520; 2,410.
489 words, about 2 min2Two Sections with Different Means and SDs
Two Class XI sections in a higher secondary school have 40 students each and took the same 100-mark statistics test. Section A's mean is 62 with standard deviation 8; Section B's mean is 50 with standard deviation 5.
468 words, about 2 min3Rainfall and Paddy Yield: Prediction or Causation?
A block development office studied 10 villages in a single paddy season. Rainfall x, measured in centimetres, ranged from 60 to 140, with mean 100 and standard deviation 20.
445 words, about 2 min4Defective Bulbs from Two Machines
A bulb factory operates two machines, M1 and M2. M1 produces 60% of the day's output and M2 produces 40%.
374 words, about 2 min5Hostel Mess Fee and a Fixed-Basket Index
The mess committee of a government hostel wants to revise the monthly mess fee. In the base year 2023, a student's monthly basket was rice 15 kg at ₹40 per kg, dal 4 kg at ₹90 per kg, cooking oil 2 litres at ₹120 per litre, and vegetables 10 kg at ₹30 per kg.
536 words, about 3 min