Exercise 12.1 Full Solutions | BASIC STATISTICS | Class 10 Math | Federal Board| NBF

Exercise 12.1 Full Solutions | BASIC STATISTICS | Class 10 Math | Federal Board| National Book Foundation This video covers full solutions of Exercise 12.1 from Chapter Basic Statistics, Class 10 Math (Federal Board - NBF). Learn how to: ✔ Construct cumulative frequency tables ✔ Draw cumulative frequency polygons and ogives ✔ Find quartiles, percentiles, deciles, and interpret graphs ✔ Solve real-life data problems Ideal for FBISE & NBF students preparing for board exams. 📘 Based on National Book Foundation (NBF) 📚 Class 10 Mathematics - Chapter: Basic Statistics 🎯 Federal Board (FBISE) --- ✅ Hashtags: #BasicStatistics #Class10Math #CumulativeFrequency #OgiveGraph #FBISENotes #NBFSolutions #FederalBoardMath #Percentiles #Quartiles #Exercise12_1 00:00:00 - Intro: What you will learn in Exercise 12.1 00:01:55 - Q1: Make cumulative frequency column & answer: (i) Total number of items (ii) Class of 8th item (iii) Items worth less than 21 (iv) Group with highest frequency (v) Lower boundary of last class 00:10:40 - Q2: Baby’s weight gain data. Draw polygon & estimate weight at 4.5 months 00:23:05 - Q3: Ages of refugees. Draw ogive. Find: a) First Quartile b) 7th Decile c) 60th Percentile 01:02:04 - Q4: Hifz Test scores. Draw ogive. Answer: a) Total boys appeared b) Median score c) Boys below median d) Boys in 1st decile e) Boys in 30th percentile f) 100th percentile (Excellence award) 01:17:54 - Q5: Masses of 50 cubs: i) Make cumulative table ii) Draw polygon & estimate cubs greater than 77kg iii) Draw curve & estimate cubs greater than 77kg iv) Compare both results 01:29:12 - Q6: Heights of buildings (from graph): a) Buildings less than 50m b) Percentage below 50m c) Ratio less than 50m : greater than 50m d) Buildings in 1st quartile e) Max height under 8th decile f) Max height not in 30th percentile 01:42:09 - Q7: Salaries analysis using quartiles. Find range and interquartile range 01:47:19 - Q8: Khadeeja’s score is in 75th percentile. What does it mean? 01:50:35 - Q9: House pricing based on Q1, Q2, Q3 & max. Find price if in 3rd quartile & IQR 01:56:27 - Q10: Cumulative curve of faulty items. Estimate: i) Median ii) Lower Quartile iii) Upper Quartile iv) IQR v) 7th Decile vi) 30th Percentile