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India
Class IX

Create and interpret 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
< 1min

Examine the histogram given and answer the following questions.

Easy
1min

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:

Medium
1min

The amount of snowfall (in centimetres) is recorded at the base of the mountain each day.

Medium
3min
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Outcomes

9.SP.S.1

Introduction to Statistics: Collection of data, presentation of data – tabular form, ungrouped/ grouped, bar graphs, histograms (with varying base lengths), frequency polygons, qualitative analysis of data to choose the correct form of presentation for the collected data.

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