Question 1162283
a. That is 10/100 or 1/10
b. DD DN (others that work are ND and NN)
c. 
D(0.1)------D(1/11)
-------N (10/11)


N-(0.9)-----D(10/99)
-------N(89/99)

d. No, because if the first camera is defective the second camera certainly can be.
e. Not independent, because the result of the first changes the probability of the second, not a lot but definitely different.
f. chance 1st is defective is 1/10 and the second is 9/99 or 1/11. That product is the answer and it is 1/110.
g. chance 1st is defective and 2nd is not or 1st is normal and the 2nd defective is 1/10*90/99 (10/11) and 90/100*10/99. That is 1/11+1/11 or 2/11.