(a) What are meant by probability and probability distribution function? (b) A survey of 500 students taking one or more courses in Algebra, Physics, and Statistics during one semester revealcd the following numbers of students in the indicated subjects Aigebra- 329 Physics - 186 Statistics - 295 Algebra & Physics- Algebra & Statistics- 217 Physics & Statistics- 63 How many students were taking: (i) all t'hree subjects, (ii) Algebra but not Statistics, 83

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.