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In a survey of 50 families, the number of children per family was: 0 children – 6 families, 1 – 14, 2 – 18, 3 – 8, 4 – 4. What is the mean number of children per family?

Competition practiceStatistics
  • A2
  • B18
  • C1.96
  • D1.8

Step-by-Step Solution

; mean . Families with 0 children still count in .
Answer: D) 1.8

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