Introduction to Statistics: Collection of data, presentation of data – tabular form, ungrouped / grouped, bar graphs, histograms (with varying base lengths), frequency polygons. Mean, median and mode of ungrouped data.
History repeated experiments and observed frequency approach to probability. Focus is on empirical probability. (A large amount of time to be devoted to group and to individual activities to motivate the concept; the experiments to be drawn from real-life situations, and from examples used in the chapter on statistics).
QUESTION PAPER DESIGN CLASS – IX (2019-20) Time: 3 Hrs. Max. Marks: 80
Internal Assessment will be conducted as per the following marks distribution: