This book included 250 questions in statistics. The areas which are widely treated in this textbook  includes: (i) Bar Chart, Pie Chart, Histogram And Frequency Histogram. (ii) Mean, Mode, Median And Range For Ungrouped And Grouped Data. (iii) Mean Deviation And Using Assume Mean. (iv) Variance And Standard Deviation.  (v) Coefficient Of Variation and skewness.  (vi) Relative And Cumulative Frequency. (vii) Frequency Distribution Tables And Graphs. (viii) Spearman´s Rank Correlation Coefficient And Scatter Diagram (ix) Normal Distribution And Line Of Best Fit. (x) Quartiles: first, second, third and fourth quartiles.

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