NCERT - 7 - Maths :: Data Handling

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Go To: NCERT-Mathematics-Grade 7

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[Author - Kripa S]


Objective: Explain how to organize data and draw graphs based on data inferred

Subtopics to be covered:

- Organize data in order, frequency, range of data

- Arithmetic mean and Median of data

- Bar graphs, Tally marks, Frequency table

Learning Outcome:

- Students can create a frequency table with tally marks for a given set of data

- Students can read a bar graph and decipher data portrayed


[Author - Kripa S]


1. Make a measuring scale on a wall till 180 cm. Measure the height of every student in your class on that scale.

Group students with same height. Make a table of length and number of students with same height (eg: 100 cm, 110 cm 120 cm…)

Find the range, mean and median of your class height.

2. Collect last week's attendance attendance from your class. Make a table of how many students were present on the 6 days. (Monday, Tuesday, .... ). Check what is the average attendance of the class for the week

Draw a bar chart if you can on the attendance


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