A company has produced a new module. The failure data on 40 returns are shown below. If the time to failure follows a normal distribution, what is the probability that time to failure exceeds 20…

The correct answer is A. 0.028. You've hit your weekly limit · resets 5am (America/New_York)

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Question

A company has produced a new module. The failure data on 40 returns are shown below. If the time to failure follows a normal distribution, what is the probability that time to failure exceeds 20 hours ?

Options

A0.028
B0.050
C0.950
D0.972

How the community answered

(35 responses)

A
74% (26)
B
9% (3)
C
14% (5)
D
3% (1)

Explanation

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Topics

#normal distribution#failure probability#time to failure#statistical analysis

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