ibps-so 2016 · Question 129 of 394

The block closes with a pair in which the two sets of roots lie clear of each other altogether, though the arithmetic that separates them is not light. I. 2x² – 19x + 42 = 0 II. y² – 20y + 91 = 0

1. Ax > y
2. Bx < yCorrect
3. Cx ≥ y
4. Dx ≤ y
5. Ex = y, or no relation can be established between x and y Directions (Q130–Q132) : Questions 130 to 132 arise out of the proposal placed before the technology committee of Chandrabhaga Urban Bank for mining the records of its retail customers. The sequence of activities set out in that proposal is reproduced as Figure 4 and the sample of transactions appears within the question that refers to it. STEP 1 – selection: the subset of the bank's data that bears upon the question is picked out of the operational stores ▼ STEP 2 – pre-processing: noise is removed, duplicate records are reconciled and missing values are dealt with ▼ STEP 3 – transformation: the cleaned data is reduced, aggregated and recast into the form the algorithm requires ▼ STEP 4 – the mining step proper: an algorithm is applied to the prepared data to extract patterns ▼ STEP 5 – interpretation and evaluation: the patterns are judged for interest and usefulness and become knowledge