Mathematics

10th

grade

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Assumed Mean Method | Statistics | Assessment | English | Grade 10

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  • 1. Multiple Choice
    30 seconds
    1 pt

    For finding the mean of grouped data using the Assumed Mean Method the formula is Mean = a + [(∑f¡d¡) / ∑f¡] , d¡ is ________

    d¡ = f¡x¡ ─ a

    d¡ = x¡ ─ f¡

    d¡ = x¡ ─ a

  • 2. Multiple Choice
    30 seconds
    1 pt

    If the mean of the following frequency distribution is 57.6 and the sum of the observations is 50. Find the missing frequencies x and y. Class: 0-20 20-40 40-60 60-80 80-100 100-120 Freq.(f): 7 x 12 y 8 5

    x = 8, y = 10

    x = 10, y = 8

    x = 7, y = 11

  • 3. Multiple Choice
    30 seconds
    1 pt

    The marks in English of 50 students in Class X are given below. Find the mean of the marks obtained by the students in English, using the Assumed Mean method. Marks: 0 - 20 20 - 40 40-60 60-80 80-100 Freq.(f) or No. of Students: 5 10 15 15 5

    50

    52

    80

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