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Oak MathsTest · Maths

Calculating the median

The starter and exit quiz of the lesson “Calculating the median”, from the unit “Numerical summaries of data” (Year 8 Maths) by Oak National Academy.

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Oak National Academy

12 questions

  1. A vet records how many of each type of pet she sees in a week. Which category of pet did the fewest people have? ___
  2. How many pieces of data are represented by this bar chart?
  3. The median is the central (middle) piece of data when the data are in numerical ___. It is a measure of central tendency representing the average of the values.
  4. The median of these data: 1, 1, 1, 3, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9 is ___.
  5. The median of these data: 8.0, 2.2, 4.5, 8.9, 3.1, 3.4, 4.6, 8.2, 5.7 is ___.
  6. A large data set has 455 values. The median is the ___th data value when the data is in order of size.
  7. A measure of central tendency is a summary measure that attempts to describe a whole set of data with a ___ value that represents the middle or centre of its distribution.
  8. An ordered data has 4751 pieces of data. The median is in the ___th position.
  9. An estate agent records how many bedrooms each house has on their sales list. The number of houses with 2 bedrooms or fewer is ___.
  10. A football coach records the number of goals scored in the last 45 matches. What is the median number of goals scored?
  11. The median will __________ be in the middle bar on a bar chart.
  12. Jun records how long it takes him to get to school each day for a week. Jun's results are shown on the line graph. Jun's median journey time is ___ minutes.

License: OGL

Calculating the median · Examplary