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Manish rai
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Asked: 2025-03-01T09:36:58+00:00 In:

Average of numbers: 10, 8, 9, 7, 8 is

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100%8.4 ( 1 voter )
0%7.4
0%4.8
0%8.2
Based On 1 Vote

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Strengthen your preparation for Class 9th Maths with NCERT solutions and MCQ-based questions from Chapter 12: Statistics. Practice exercise questions, short-answer problems and clear explanations to master concepts like frequency distribution, grouped data and graphical representation using bar graphs, histograms, and frequency polygons. These resources are designed as per the CBSE syllabus for thorough exam preparation. Consistent practice will enhance your confidence and problem-solving abilities. Access step-by-step solutions and revision notes crafted for success.

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    1 Answer

    1. To calculate the average of the numbers, use the formula:
      Average = (Sum of all observations) / (Number of observations).

      Calculate the sum of the numbers.
      The numbers are: 10, 8, 9, 7, 8.
      Sum = 10 + 8 + 9 + 7 + 8 = 42.

      Count the number of observations.
      There are 5 numbers in the list.

      Calculate the average.
      Average = Sum / Number of observations,
      Average = 42 / 5,
      Average = 8.4.

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