"An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed, with mean equal 810 hours and a standard deviation of 68 hours. Find the probability that a random samples of 46 bulbs will have an average life between 783 and 811 hours." 0.5398 B 0.4602 0.0036 0.5363
"An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed, with mean equal 810 hours and a standard deviation of 68 hours. Find the probability that a random samples of 46 bulbs will have an average life between 783 and 811 hours." 0.5398 B 0.4602 0.0036 0.5363
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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