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A factory records defective items per day in classes 0-5, 5-10, 10-15, 15-20
with frequencies 10, 7, 2, 1.
On what fraction of the recorded days were there fewer than 5 defective items?

Class 9Bar Graphs and HistogramsStatistics and Probability
  • A
  • B
  • C
  • D

Step-by-Step Solution

Total days = 10 + 7 + 2 + 1 = 20. Days with fewer than 5 = 10. Fraction = .
Answer: A)

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