Median – Verified PYQ Authority Guide
Median is a sub-topic revision hub built around verified PYQ evidence. It connects the recurring question patterns inside this sub-topic with the formulas, exam tips, common traps and concept pages already present in SRO. Every factual learning cue below is drawn from the existing verified, published and approved English PYQ corpus or from its Knowledge Graph relationships; the hub does not invent unsupported technical claims.
PYQ evidence snapshot
5 verified PYQs are currently mapped to this Sub Topic hub. The represented years include 2025. Exam coverage currently includes RRB NTPC Under Graduate Level. Subject context includes Quantitative Aptitude. These values come from live mappings and can expand automatically when new verified PYQs are added.
Most useful verified PYQs to solve first
Start with the actual questions rather than memorising a generic note. The links below are ranked from the mapped corpus using repeat history and editorial quality, while the complete explanation stays on the individual question page.
- The following data shows the number of minutes taken by 15 students to complete a mathematics test: 42, 38, 55, 47, 50, 44, 60, 39, 48, 52, 45, 41, 49, 46, 53.…
RRB NTPC Under Graduate Level · 2025
Use the standard Median method and simplify; the result matches 47 minutes. - The median of the given distribution is 28.5. Find the missing frequency x. Class 0-10 10-20 20-30 30-40 40-50 50-60 Frequency 5 x 20 15 7 5
RRB NTPC Under Graduate Level · 2025
Use the standard Median method and simplify; the result matches 8. - The monthly incomes (in ₹ thousands) of ten employees are 35, 40, 38, 50, 46, 42, 39, 37, 41, and 44. What is the median income of the employees (in ₹ thousands)?
RRB NTPC Under Graduate Level · 2025
Use the standard Median method and simplify; the result matches 40.5. - Find the median of the following data (correct to two places of decimal). Class interval 0-6 6-12 12-18 18-24 24-30 30-36 Frequency 5 7 10 13 9 8
RRB NTPC Under Graduate Level · 2025
Use the standard Median method and simplify; the result matches 19.85. - Given the data set: 12, 36, 22, 27, 31, 17. What is the median value?
RRB NTPC Under Graduate Level · 2025
Use the standard Median method and simplify; the result matches 24.5.
Formula & key-relationship bank from verified solutions
sin²θ + cos²θ = 1; tanθ = sinθ/cosθ; cotθ = 1/tanθ
Use these as revision triggers and open the linked PYQ before applying a formula numerically; variable definitions and assumptions belong to the exact solved question.
Core ideas repeatedly reinforced by the solved corpus
- Use the standard Median method and simplify; the result matches 47 minutes.
- Use the standard Median method and simplify; the result matches 8.
- Use the standard Median method and simplify; the result matches 40.5.
- Use the standard Median method and simplify; the result matches 19.85.
- Use the standard Median method and simplify; the result matches 24.5.
Exam tips already validated in SRO solutions
- Identify the Median relationship before calculation and keep units/bases consistent.
Common mistakes to avoid
- Using a shortcut without checking its conditions or using the wrong base/unit.
Topic and concept coverage
Mapped topic labels include Measures of Central Tendency. The concept trail includes Median. Use these labels as a revision map: move from the broad area to the narrow concept, solve a verified PYQ, inspect the detailed reasoning, and then attempt another question from the same cluster.
Knowledge Graph navigation
Continue with Measures of Central Tendency, Median, Statistics, Quantitative Aptitude. These are canonical SRO entity links based on the Knowledge Graph and shared question mappings, not keyword-stuffed tag pages.
How to revise this authority page efficiently
- Solve before reading: answer a mapped PYQ first.
- Read the exact explanation: verify the correct principle, formula, distractor logic and common mistake on that question page.
- Move one level in the graph: use the closest concept/sub-topic/topic link rather than opening unrelated content.
- Reattempt: solve another verified PYQ from this hub and check whether the same error repeats.
Quality scope: this page is automatically maintained from SRO’s verified mapped corpus. It enriches one canonical authority URL instead of generating multiple near-duplicate pages for keyword variants. Manual authority articles are never overwritten by the automated engine.