Answer:
P = 0.006
Step-by-step explanation:
Given
n = 25 Lamps
each with mean lifetime of 50 hours and standard deviation (SD) of 4 hours
Find probability that the lamp will be burning at end of 1300 hours period.
As we are not given that exact lamp, it means we have to find the probability where any of the lamp burning at the end of 1300 hours, So we have
Suppose i represents lamps
P (∑i from 1 to 25 (
> 1300)) = 1300
= P(
> 
) where represents mean time of a single lamp
= P (Z> 
) Z is the standard normal distribution which can be found by using the formula
Z = Mean Time () - Life time of each Lamp (50 hours)/ (SD/
)
Z = (52-50)/(4/
) = 2.5
Now, P(Z>2.5) = 0.006 using the standard normal distribution table
Probability that a lamp will be burning at the end of 1300 hours period is 0.006
Answer: your answer is 32/51
Step-by-step explanation:
Answer:
Ndiba rented the bike for 8 hours
Step-by-step explanation:
41 - 17 = 24
24 ÷ 3 = 8
The questions is, when z=9, 3z = ? When you multiply 3*9, you get 27
Answer:
The answer is "
"
Step-by-step explanation:
They might claim that perhaps the ratio to Raul would've been:
per each 125(x) page, which he reviewed throughout a summer competition.
Raul's cost per unit for each paragraph reads is page points, that's why the model a link with the same unit rate. please find the graph in the attached file.
