Answer:
f(g(2)) = 1
Step-by-step explanation:
Another way to write this composite is f(g(2)). We first have to compute g(2), then fit that value into f.
.
g(2) = 4. Now we have to find f(4):
f(4) = 4 - 3 = 1
0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:
In which is the decay parameter.
The probability that x is lower or equal to a is given by:
Which has the following solution:
The probability of finding a value higher than x is:
The mean time for the component failure is 2500 hours.
This means that
What is the probability that the lifetime exceeds the mean time by more than 1 standard deviations?
The standard deviation of the exponential distribution is the same as the mean, so this is P(X > 5000).
Option B. of the bag.
Eight friends ate of a bag of chips in the same amount.
We have to find the quantity that each person ate the chips.
Each friend ate = ÷ 8
= ×
=
Therefore, each friend ate of the bag of chips.
Option B is the answer.
88°
r+92= 180
r= 180-92
r = 88°