SOLUTION: Suppose that an experiment is repeated four times. A certain event has probability 1/10 in a single repetition of the experiment. What is the probability that it occurs at least on

Question 39638: Suppose that an experiment is repeated four times. A certain event has probability 1/10 in a single repetition of the experiment. What is the probability that it occurs at least once?
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
Suppose that an experiment is repeated four times. A certain event has probability
OF WHAT ?OCCURRENCE OR NON OCCURRENCE?ASSUMING IT IS FOR OCCURRENCE
1/10 in a single repetition of the experiment. What is the probability that it occurs at least once?
P(O)=1/10=0.1....P(NO)=9/10=0.9
LET US FIND PROBABILITY OF NO OCCURRENCEIN 4 TRIALS =(0.9)^4
HENCE PROBABILITY OF ATLEAST 1 OCCURRENCE =1-(0.9)^4
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