Electronics and Communication Engineering - Signals and Systems - Discussion
Discussion Forum : Signals and Systems - Section 1 (Q.No. 39)
39.
A box has 4 white and 3 red balls. Two balls are taken out in succession. What is the probability that both are white?
Answer: Option
Explanation:
The probability that first ball is white is 
and the probability the second ball is white is 
. The probability that both are white is 
.
Discussion:
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