8 bulbs were tested to determine their lifetime in hours with the following grouped frequency distribution: 50-54.5 (f=3), 55-59.5 (f=2), 60-64.5 (f=1), 65-69.5 (f=1), 70-74.5 (f=0), 75-79.5 (f=1). Obtain the median class.", "options": ["50 - 54.5", "55 - 59.5", "60 - 64.5", "65 - 69.5"]
University of Ilorin STA111 2025 past question
- 50 - 54.5
- 55 - 59.5
- 60 - 64.5
- 65 - 69.5
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