DSERT - 8 - Maths :: Statistics

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[Author - Kripa S]

Objective: Explain basics of statistics, how to draw a histogram

Subtopics to be covered:

- Revise basic concepts - data, observation, range, frequency, class intervals

- Construct frequency distribution table for exclusive and inclusive class intervals.

- Draw histogram for the given frequency distribution.

- Define mean, median and mode

- Calculate mean, median, mode for grouped and un-grouped data.

Learning Outcome:

- Students know the basics terms used in statistics

- They can read data and find the value for required terms

- They can draw a histogram for given data

- They can calculate mean, median, mode for a given data

[Author - Kripa S]

http://ktbs.kar.nic.in/new/website%20textbooks/class8/8th-kannada-maths-2.pdf#page=85 (Kannada Medium)

http://ktbs.kar.nic.in/new/website%20textbooks/class8/8th-english-maths-2.pdf#page=79 (English Medium)

[Author - Kripa S]

https://www.youtube.com/watch?v=5Yl8-QoNzXs (tally marks - English)

https://www.youtube.com/watch?v=QzcgSCmWcVo (mean, median, mode - English)

[Author - Kripa S]

http://people.revoledu.com/kardi/tutorial/BasicMath/Average/image/Arithmetic-Mean.jpg (arithmetic mean)

https://faculty.elgin.edu/dkernler/statistics/ch03/images/median.jpg (median)

'http://uphins.com/wp-content/uploads/2015/08/DATA-copy.png (data organization and graphs)

http://www.math-only-math.com/images/tally-mark-table.jpg (tally marks)

http://www.learnersdictionary.com/media/ld/images/legacy_print_images/bar_graph.gif (bar graph)

http://www.datavizcatalogue.com/methods/images/top_images/histogram.png (histogram)

[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.

Also, make a frequency table with class interval of 10 cm and make a fresh table of the data collected. Make a bar graph of this data and show the height of your class on a chart paper.

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

[Contributor - Paul DSilva]

https://drive.google.com/open?id=0BzNF2YyqQxJ-V3ZoTUw5VWgtYWM

[Contributor - Apoorva Ramachandra]

Term	Transliterated Term	Translated Term
Data	ಡೇಟಾ	ದತ್ತಾಂಶ
Range	ರೇಂಜ್	ವ್ಯಾಪ್ತಿ
Frequency	ಫ್ರೀಕ್ವೆನ್ಸಿ	ಆವೃತ್ತಿ
Class Interval	ಕ್ಲಾಸ್ ಇಂಟರ್ವಲ್	ವರ್ಗ ಮಧ್ಯಂತರ
Class limit	ಕ್ಲಾಸ್ ಲಿಮಿಟ್	ವರ್ಗ ಮಿತಿ
Class Size	ಕ್ಲಾಸ್ ಸೈಜ್	ವರ್ಗ ಗಾತ್ರ
Histogram	ಹಿಸ್ಟೋಗ್ರಾಮ್	ಆಯತ ಚಿತ್ರ
Mean	ಮೀನ್	ಸರಾಸರಿ
Median	ಮೀಡಿಯನ್	ಮಧ್ಯಾ೦ತರ
Mode	ಮೋಡ್	ಬಹುಲಕ
Median Class	ಮೀಡಿಯನ್ ಕ್ಲಾಸ್	ಮಧ್ಯಾ೦ತರ ವರ್ಗ

Term'	'Transliterated Term'	'Translated Term'
Data	ಡೇಟಾ	ದತ್ತಾಂಶ
Range	ರೇಂಜ್	ವ್ಯಾಪ್ತಿ
Frequency	ಫ್ರೀಕ್ವೆನ್ಸಿ	ಆವೃತ್ತಿ
Class Interval	ಕ್ಲಾಸ್ ಇಂಟರ್ವಲ್	ವರ್ಗ ಮಧ್ಯಂತರ
Class limit	ಕ್ಲಾಸ್ ಲಿಮಿಟ್	ವರ್ಗ ಮಿತಿ
Class Size	ಕ್ಲಾಸ್ ಸೈಜ್	ವರ್ಗ ಗಾತ್ರ
Histogram	ಹಿಸ್ಟೋಗ್ರಾಮ್	ಆಯತ ಚಿತ್ರ
Mean	ಮೀನ್	ಸರಾಸರಿ
Median	ಮೀಡಿಯನ್	ಮಧ್ಯಾ೦ತರ
Mode	ಮೋಡ್	ಬಹುಲಕ
Median Class	ಮೀಡಿಯನ್ ಕ್ಲಾಸ್	ಮಧ್ಯಾ೦ತರ ವರ್ಗ

[Contributor- Paul DSilva]

https://drive.google.com/open?id=0BzNF2YyqQxJ-MEI2M0pjZFpyYjQ

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