Pumps were selected randomly, and their lifetimes were noted at various points of the time interval as follows: Pumps failed (Frequency) 3. Class Interval (Hours) 100- 110 110-120 120-130 130 140 140-150 16 35 25 Find the failure probability at t-140 (Round up to 3 decimal digits)

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Question 12
Pumps were selected randomly, and their lifetimes were noted at various points of the time interval as follows:
W Pumps failed (Frequency)
Class Interval (Hours)
100 - 110
110-120
16
120 - 130
130 140
140-150
35
25
Find the failure probability at t-140
(Round up to 3 decimal digits)
Transcribed Image Text:A Moving to another question will save this response. Question 12 Pumps were selected randomly, and their lifetimes were noted at various points of the time interval as follows: W Pumps failed (Frequency) Class Interval (Hours) 100 - 110 110-120 16 120 - 130 130 140 140-150 35 25 Find the failure probability at t-140 (Round up to 3 decimal digits)
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