___________
Maths
Numerical summaries of data

Starter quiz

  • In which of these statistical graphs can the frequency of the data set be seen from the graph alone?
    • bar chart  ✓
    • line graph
    • pictogram
    • pie chart  ✓
    • scatter graph  ✓
  • Which of these statistical graphs is best at showing the change in the value of something over time?
    • bar chart
    • line graph  ✓
    • pictogram
    • pie chart
    • scatter graph
  • Which of the following statements is true when describing the mode of these four bar charts?
    Which of the following statements is true when describing the mode of these four bar charts?
    • Data set A is bimodal.
    • Data set B is bimodal.  ✓
    • At least one data set is trimodal.  ✓
    • The highest modal frequency is 13.
    • The highest modal frequency is 14.  ✓
  • Match the statements that summarise these bar charts to the value that end each sentence.
    Match the statements that summarise these bar charts to the value that end each sentence.
    • The range of data set C is
      ⇔
      13 ✓
    • The range of data set D is
      ⇔
      9 ✓
    • The median of A, B, and C is
      ⇔
      5 ✓
    • The mode of data set D is
      ⇔
      4 ✓
  • How much larger is the mode of this dot plot compared to its mean? <span class="blank">______</span>
    How much larger is the mode of this dot plot compared to its mean? ______
    • '2' ✓
  • How much larger is the mean of this dot plot compared to its mode? Give your answer rounded to 1 decimal place. <span class="blank">______</span>
    How much larger is the mean of this dot plot compared to its mode? Give your answer rounded to 1 decimal place. ______
    • '0.6' ✓
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