The probability of guessing the correct answer to a certain question is x /2 .If the probability of not guessing the correct answer is 4 / 5, then find the value of x
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P(even) + p(notE.) = 1.
x/2+4/5=1
5x+8/10=1
5x+8=10
5x=2
x=2/5ANS.
x/2+4/5=1
5x+8/10=1
5x+8=10
5x=2
x=2/5ANS.
harshkumargaurav:
for wht?
OK, Bt again sry
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