The weights (in kg) of 50 adults are grouped as follows: Weight (kg): 40–60 60–80…

MATHEMATICS · Subjective · GCSE · Mathematics · Statistics · Statistics

Problem

The weights (in kg) of 50 adults are grouped as follows: Weight (kg): 40–60 60–80 80–100 100–120 120–140 140–160 Frequency: 4 8 15 16 5 2 Calculate the mean weight of the adults, correct to one decimal place.

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