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8 April, 02:02

Brooke has scores of 84, 72, 90, 95, and 87 on her first five quizzes. After taking the sixth quiz, Brooke's mean score increased. Which could be Brooke's sixth quiz score? Select three options. 85 90 83 86 92

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Answers (2)
  1. 8 April, 02:28
    0
    90,92,86

    Step-by-step explanation:

    84+72+90+95+87=428

    428/5=85.6

    So the mean must be above 85.6

    428+90=518

    518/6=86.3

    428+92=520

    520/6=86.7

    428+86=514

    514/6=85.7

    So the answer is 90,92,86
  2. 8 April, 02:31
    0
    90,92,86

    Step-by-step explanation:

    84+72+90+95+87=428

    428/5=85.6

    So the mean must be above 85.6

    428+90=518

    518/6=86.3

    428+92=520

    520/6=86.7

    428+86=514

    514/6=85.7
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