The lifetimes (in hours) of 200 LED bulbs made in a Coimbatore factory are grouped in classes of width 500 starting at 0. The modal class is 1500-2000 with f1 = 60, f0 = 45, f2 = 50. Compute the modal lifetime (in hours).

Question

Accepted Answer

1800.0. l=1500, h=500. Mode = 1500 + 60-45/2 × 60-45-50*500 = 1500 + 15/25*500 = 1500 + 300 = 1800.

The lifetimes (in hours) of 200 LED bulbs made in a Coimbatore factory are grouped in classes of width 500 starting at 0. The modal class is 1500-2000 with f1 = 60, f0 = 45, f2 = 50.
Compute the modal lifetime (in hours).

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More Class 10 Mode of Grouped Data practice

The lifetimes (in hours) of 200 LED bulbs made in a Coimbatore factory are grouped in classes of width 500 starting at 0. The modal class is 1500-2000 with f1 = 60, f0 = 45, f2 = 50.Compute the modal lifetime (in hours).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Mode of Grouped Data practice

The lifetimes (in hours) of 200 LED bulbs made in a Coimbatore factory are grouped in classes of width 500 starting at 0. The modal class is 1500-2000 with f1 = 60, f0 = 45, f2 = 50.
Compute the modal lifetime (in hours).