Unit 4, try it
A survey of the ages of cars gives these frequencies: 1-2 years: 15, 2-3: 27, 3-4: 36, 4-5: 21, 5-6: 11. How many cars are in the survey?
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Form 4 Mathematics
Unit 4: Statistics questions and answers
194 practice questions on Statistics, covering all 4 lessons of the unit. Each has its answer and an explanation. Free.
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Statistics: sample questions with answers
Unit 4, try it
Wheat yields: 40-45: 4 farms, 45-50: 6, 50-55: 16, 55-60: 20, 60-65: 30, 65-70: 24. How many farms have more than 40 kg/ha?
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Unit 4, try it
Science marks are 29, 54, 54, 64, 74. Find the mean.
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Unit 4, try it
A stem and leaf plot has the note '2|4 means 2.4'. What value does 5|9 show?
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What unit 4 covers
Questions follow the book: Mathematics, Secondary, Form Four, Student Book.
Lesson 1: Mean, Median, Mode of Grouped Data
- Measures of central tendency
- Mean of Grouped Data
- Median for grouped data
- Mode of a Grouped Data
Lesson 2: Cumulative Frequency Curve (or Ogive)
- Cumulative frequency curve
- 'Less than' series
- 'Greater than' series
- Median from cumulative frequency curve
Lesson 3: Measures of dispersion (spread)
- Range and interquartile range
- Standard deviation of ungrouped data
- Standard Deviation of Grouped Data
Lesson 4: Stem-and-leaf Plots
- Stem-and-leaf plots
Other units of Form 4 Mathematics
- unit 1Analytic Trigonometry
- unit 2Complex Numbers
- unit 3Probability
- unit 5Limits and Continuity
- unit 6Differentiation
- unit 7Integration
