The graph shows the distance a bicyclist traveled from a starting point in 10-second increments. Which of these is closest to th
e average speed of the bicyclist during 30 seconds of motion?
A. 0.3m/s
B. 3m/s
C. 10m/s
D. 30 m/s
PLEASE HELP QUICK!
A. 0.3m/s
B. 3m/s
C. 10m/s
D. 30 m/s
PLEASE HELP QUICK!
1 answer:
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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:
Step-by-step explanation:
<u>Step 1: Set the second equation into the first </u>
<u>Step 2: Solve the second equation </u>
Answer: