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Hong Kong
Stage 1 - Stage 3

Histograms and Polygons

Interactive practice questions

Continuous data is represented in a histogram as shown:

HistogramScoreFrequency1020212325272931

Complete the following frequency table:

Score Frequency
$21$21 $\editable{}$
$23$23 $\editable{}$
$25$25 $\editable{}$
$27$27 $\editable{}$
$29$29 $\editable{}$
$31$31 $\editable{}$
Easy
Less than a minute

Examine the histogram given and answer the following questions.

Construct a column graph to represent the following data:

$46,47,48,48,48,47,50,47,48,50,47,46,49,49,50,49,48,47,46,50,48,51,51,50,50,47,49,48,51,49,50,51$46,47,48,48,48,47,50,47,48,50,47,46,49,49,50,49,48,47,46,50,48,51,51,50,50,47,49,48,51,49,50,51

Some people were asked approximately how many of their high school friends they remained in contact with after high school. Each approximated to the nearest 10 friends. The results are presented in the frequency distribution table:

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