CDS · Elementary Mathematics

Statistics

Collection, representation and central tendency of statistical data.

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  • Q1 · Statistics · EASY

    The marks obtained by 5 students are 20, 25, 30, 35, and 40. What is the mean of their marks?

  • Q2 · Statistics · MEDIUM

    The median of the data set 12, 18, 20, 24, 30 is:

  • Q3 · Statistics · HARD

    The mode of the data set 5, 7, 9, 7, 11, 13, 7, 15 is:

  • Q4 · Statistics · MEDIUM

    The mean of 5 numbers is 18. If one number 26 is removed, what is the new mean?

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