Answer:
The probability of a bulb lasting for at most 606 hours is 0.9032
Step-by-step explanation:
The mean lifetime of a bulb is 580 hours.
The standard deviation of the lifetime is 20 hours
We are supposed to find the probability of a bulb lasting for at most 606 hours i.e.
Formula :
Z=1.3
Refer the z table
Hence the probability of a bulb lasting for at most 606 hours is 0.9032
6 x 4.3 = (6 x 4)+ (6 x 0.3) = 24 + 1.8 = 25.8
There are 30 pieces of candy and 6 kids how many pieces would each kid get ?
Answer:
3/4ths of a mile
Step-by-step explanation:
Just devide 3 by 4 because there are 4 people and 3 miles