Answer:

Step-by-step explanation:
The PDF of X is
The PDF of Y is
The means of X and Y are respectively,
so we can see that the larger the parameter, the smaller the mean. Hence the PDF of Z = min(X, Y) is an exponential with the largest parameter of the two.
Therefore, the PDF of Z is
Answer:
please be more specific
Step-by-step explanation:
Range of y = -3 cosx -1 is -4 < y < 2
Answer:
There is no graph.
Step-by-step explanation: