Answer:
OA. Centroid
Step-by-step explanation:
<z = 180 - 43
<z = 137
answer
<z = 137 degrees
Answer:
a)
b)
Step-by-step explanation:
Given:
The lifetimes of the individual items are independent exponential random variables.
Mean = 200 hours.
Assume, Ti be the time between ( )st and the failures. Then, the are independent with being exponential with rate
Therefore,
a)
The variance is given by,
Answer: 6√6
Step-by-step explanation:
√216=
√(36*6)=6√6