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DATA HANDLING# (CLASS VIII (Introduction to graphs (15 hrs)
PRELIMINARIES…
DATA HANDLING#
CLASS VIII
Consolidating and generalising the notion of chance in events like tossing coins, dice etc. Relating it to chance in life events. Visual representation of frequency outcomes of repeated throws of the same kind of coins or dice.
Throwing a large number of identical dice/coins together and aggregating the result of the throws to get large number of individual events.
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Reading bar-graphs, ungrouped data, arranging it into groups, representation of grouped data through bar-graphs, constructing and interpreting bar-graphs.
Observing the aggregating numbers over a large number of repeated events. Comparing with the data for a coin. Observing strings of throws, notion of randomness
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CLASS VII
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Feel of probability using data through experiments. Notion of chance in events like tossing coins, dice etc. Tabulating and counting occurrences of 1 through 6 in a number of throws. Comparing the observation with that for a coin.Observing strings of throws, notion of randomness.
Mean, median and mode of ungrouped data – understanding what they represent.
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