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Data
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India
Class IX

Create and interpret histograms

Lesson
Practice

Interactive practice questions

Examine the histogram given and answer the following questions.

ScoreFrequency10203001234
A bar graph with the horizontal axis represents the scores, and the vertical axis represents the frequency. The Score axis is marked with numbers from 0 to 4. The Frequency axis has intervals marked from 0 to 30 at an increment of 2, with major ticks labeled at 10, 20 and 30. Each bar tells how frequent the score occurs by how tall the bar is.
a

Which number occured most frequently?

b

How many scores of $1$1 were there?

c

How many more scores of $1$1 were there than scores of $4$4?

Easy
1min

Some people were asked how many of their high school friends they remained in contact with after high school.

The results were grouped into categories, presented in the frequency distribution table:

Easy
< 1min

Continuous data is represented in a histogram as shown:

Medium
< 1min

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

Hard
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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