The mean heights of 3 groups of students consisting of 20, 16 and 14 students…

Mathematics NECO 2002

The mean heights of 3 groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m Respectively. What is the mean height of all the students?

  • 1.52m
  • 1.53m
  • 1.54 checkmark
  • 1.55m
  • 1.56m

The correct answer is: C

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