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16 May, 20:42

in tilton school there are 380 students in key stage 3 240 students in key stage 4 110 students in key stage 5 Phoebe is carrying out of a survey she needs a sample of 100 students stratified by key stage work out the number of students from keystage 3 there should be in the sample

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  1. 16 May, 22:37
    0
    52

    Step-by-step explanation:

    There are 380 key stage 3 students

    Total number of students is 730

    380/730 x 100 = 52.05479452
  2. 17 May, 00:25
    0
    total number of students is 730

    380/730x100=52
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