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-1.pdf#page=115 (Kannada Medium)
http://ktbs.kar.nic.in/new/website%20textbooks/class8/8th-english-maths-1.pdf#page=111 (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
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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