Scan20231111105512

.pdf
15. Assume the mean useful liferof a particrlilar light bulb is 2,000 hours, which is normally distributed with a standard deviation of 300 hours. What is the range of the useful life of light bulbs within two standard deviations of the mean. / 5Y0-,.03 (A Between 1400 and 2,600 hours A0+ Foo = Mo ~ oo 7 B. Longer than 2,300 hours C. Longer than 1,700 hours D. Between 1,700 and 2,300 hours 16. The tax rate of $.6943 in decimal can be expressed per $100 as A. $69.43 mills. ! B. $690.3. C. $6.943. @69.43. VA R S s . e 12 0 1IN L R AT Ul = é.'.'c'\
Uploaded by JusticeFire14441 on coursehero.com