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NECO Mathematics · Statistics and Probability

Statistics: NECO Mathematics Past Questions and Answers

What the WAEC syllabus covers in Statistics

Our summary: Organising data into tables and charts and summarising it with averages and spread.

  • Frequency distribution
  • Pie charts, bar charts, histograms and frequency polygons
  • Mean, median and mode for both discrete and grouped data
  • Cumulative frequency curve (Ogive)
  • Measures of Dispersion: range, semi-interquartile/interquartile range, variance, mean deviation and standard deviation

Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)). NECO questions are matched to the WAEC syllabus topic.

NECO Mathematics questions on Statistics

  1. NECO 2008Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number
  2. NECO 2008The graph of cumulative frequency distribution is known as
  3. NECO 2008Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and…
  4. NECO 2008The median of a distribution can be estimated from
  5. NECO 2008The ages of Abu, Segun, Kofi and Funmi are 17 years, (2x -13) years, 14 years and 16 years respectively. What is the value of x if their mean ages is 17.5…
  6. NECO 2005Find the standard deviation of the numbers 6, 9, 10, 8 and 7
  7. NECO 2005Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.
  8. NECO 20053 - 7, 8 - 12, 13 - 17, 18 - 22. Which of the following is/are true? I. The class Interval is 4 II. The class boundaries are 2.5, 7.5, 12.5, 18.5, 22.5 III. The…
  9. NECO 2004Four pupils have an average age of 12years and two other pupils of average age of 10.5years are added. What is the average age of the six pupils?
  10. NECO 2004If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms?
  11. NECO 2004If the mean of the following set of data, 2, 3,3,3, 2,4, 4, and 3 is divided by its mode, the result is:
  12. NECO 2002The mean heights of 3 groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m Respectively. What is the mean height of all the…
  13. NECO 2001If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k
  14. NECO 2001The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age of one of the boys is 22 years, what is the mean age of the other-boys?

Years with Statistics questions in DeeepSolve's question bank

From the past questions DeeepSolve holds, not a count of everything the exam body has set.

  • 2008
  • 2005
  • 2004
  • 2002
  • 2001
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