Answer:
4.5 hours
Step-by-step explanation:
Divide 65 by 288.
65/288 = 4.5
Answer:
It travels for 1 hour, then stops for 1 hour, and finally travels again for 3 hours.
Answer:
y= 75
Step-by-step explanation:
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