The lifetime of 1000 light bulbs is known to be naturally distributed with a mean of 100 hours and standard deviation of 8 hours. How many bulbs picked at random would have a lifetime of

a. Less than 80 hours

b. Between 110 and 120 hours
c. More than 124 hours

Answer rating: 100% (QA)

The detailed answer for the above question is provided below Solution a Less than 80 hours We can ca... View the full answer