Kerala Plus Two Statistics (DHSE) case studies
Kerala Plus Two Statistics (DHSE) · Put your knowledge to work in context.
The Kerala Higher Secondary (Plus Two) Statistics course is a two-year programme offered by the Directorate of Higher Secondary Education (DHSE), Kerala, typically taken in Classes 11 and 12 at higher secondary schools. It suits students who enjoy working with data, reasoning about uncertainty, and solving structured numerical problems rather than memorising long descriptive passages. The Kerala Plus Two Statistics (DHSE) case studies are 5 cases and about 3,103 words.
1Two Sections, One Shield: Which Group Is Really More Consistent?
At a Plus Two result-review meeting in a Kollam school, the statistics teacher places two summary sheets before the principal. Section A has 40 candidates whose mean score in Mathematics is 62 marks with a standard deviation of 8 marks.
575 words, about 3 min2Rainfall and Paddy Yield: Reading Regression Output Before Trusting It
The agriculture officer of a panchayat has ten years of records for a paddy variety. For each year she notes x, the rainfall in centimetres during the growing season, and y, the yield in quintals per hectare.
636 words, about 3 min3A Defective Bulb and Three Machines: Who Should Be Inspected First?
A bulb-manufacturing unit in Ernakulam runs three machines. Machine A produces 50 per cent of the daily output, machine B 30 per cent and machine C 20 per cent.
556 words, about 3 min4Breakdowns and Bad Cartridges: Choosing Between Poisson and Binomial
A small digital-printing shop in Thrissur keeps two kinds of records. First, the number of times its main press breaks down on a working day; over a long period this has averaged 2.5 breakdowns per day, and breakdowns seem to occur independently at a steady rate.
623 words, about 3 min5A Weak Consignment of Coir Rope: One Tail or Two?
The purchase officer of a coir cooperative buys rope on the specification that the mean breaking strength is 1000 newtons. A consignment arrives, and a laboratory tests 25 randomly chosen rope samples.
713 words, about 4 min