Question

if the probability of passing an examination is 0.8; what is the probability of fail the examination

Answer 1

Hi,
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Here is your answer,
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It's of
1 - 0.8 = 0.2
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HOPE YOU WILL UNDERSTAND MY WORDS, a request is here please as I am an ACE ranker I wish that to make my way easy for the GENIUS rank you should mark my answer brainlest if you wish then only ☺.
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Answer 2

since toatal probability of paas and fail of a given event is unit, tht is 1
so answer will be (1-0.8)
0.2.