Students can learn a lot from the “mean, median, and mode” chapter in RS Aggarwal Class 10 solutions to it. Math is a subject that needs regular practise, especially in areas like statistics that have complicated formulas. If we don’t practise, it’s likely that we won’t be able to do well. The RS Aggarwal book has a lot of extra questions and great explanations of what is covered in all of the NCERT math chapters. Since they are downloadable PDFs written by math teachers who used to teach, they are very accurate and helpful to students in this way.