The life of light bulbs is distributed normally. The standard deviation of the lifetime is 20 hours and the mean lifetime of a b
ulb is 500 hours. Find the probability of a bulb lasting for between 480 and 526 hours.
1 answer:
Answer:
The probability of a bulb lasting for between 480 and 526 hours=0.74454
Step-by-step explanation:
We are given that
Standard deviation of the lifetime,
hours
Mean,
hours
We have to find the probability of a bulb lasting for between 480 and 526 hours.





Hence, the probability of a bulb lasting for between 480 and 526 hours=0.74454
You might be interested in
Answer:
Step-by-step explanatio
6,000,000 + 20,000 + 300
Answer:
she will use 4.
Step-by-step explanation:
kajsbsbsjajaja
Yes he will be able to buy the game that is $50 because:
14.25 + 3.75y + 6.50x = 50
14.25 + 3.75(3) + 6.50(4) = 50
14.25 + 11.25 + 26 = 50
51.50 = 50
Its called an Scalene triangle
Answer:
kenis
Step-by-step explanation: