A new light bulb has an expected life of 18,620 hours, with a standard deviation of 4012

Question:

A new light bulb has an expected life of 18,620 hours, with a standard deviation of 4012 hours. If the hours of life of these bulbs are normally distributed, find the probability that one of these bulbs chosen at random will last

(a) Less than 10,000 hours.

(b) More than 24,000 hours.

(c) Between 15,000 and 21,000 hours.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: