Question 1083405
Probability is the number of possible outcomes desired divided by the number of possible total outcomes. For independent events like this, this is: 
P(A and B) = (P(A))*(P(B))
:
With replacement:
P(pink and green)=(4/11)(4/11) = 16/121 = 0.1322 or 13.22%
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Without replacement:
P(pink and green)=(4/11)(4/10) = 16/110 = 0.14545 or 14.545%