Gavin thinks the equation P = 3 × 4 could be used to find the perimeter for two different
1 answer:
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Answer:
a) 0.1353
b) 0.3679
Step-by-step explanation:
Let's start by defining the random variable T.
T : ''The time (in hours) required to repair a machine''
T ~ exp (λ)
T ~ exp (1)
The probability density function for the exponential distribution is
(In the equation I replaced λ = L)
With L > 0 and x ≥ 0
In this exercise λ = 1 ⇒
For a)
For b)
The event (T ≥ 10 / T > 9) is equivalent to the event T ≥ 1 so they have the same probability of occur
Answer:
9.33 seconds
60.67 meters
Step-by-step explanation:
A worker with a speed of 3.0 m/s with respect to a car, starts to walk from one end of the car to the other in the direction of motion of the car.
As the car is 28 m long, then the worker will reach the other end of the car in seconds. (Answer)
Now, the car is moving with a speed of 6.5 m/s and in the time of 9.33 seconds, it will move by meters. (Answer)