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Help statistics no spam​-example-1
User TreeWater
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1 Answer

14 votes
14 votes

Answer:

P = 20

Explanation:

Mean

  • 18.75 = 10(5) + 15(10) + P(7) + 25(8) + 30(2) / 32
  • 18.75 × 32 = 50 + 150 + 7P + 200 + 60
  • 600 = 460 + 7P
  • 7P = 140
  • P = 20
User Francois Taljaard
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