Q4. Normal Probability Distribution If the operating life of an electric mixer, which is normally distributed has a mean
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Q4. Normal Probability Distribution If the operating life of an electric mixer, which is normally distributed has a mean
Q4. Normal Probability Distribution If the operating life of an electric mixer, which is normally distributed has a mean of 2200 h and a standard deviation of 120 h, what is the probability that a single electric mixer will fail to operate at 1900 h or less (4)
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