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50% of pupils are girls. In a sample of 10% of pupils, how many girls will you ask to fill in the questionnaire?
  • a)
    30
  • b)
    40
  • c)
    50
  • d)
    60
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
50% of pupils are girls. In a sample of 10% of pupils, how many girls ...
10% of 1,000 = 100 and half of them should be girls
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