Sum probability

Natural numbers 4,5,7,11,12 are given. Calculate the probability of the event that the sum of three randomly selected numbers is less than 22.

Final Answer:

p =  0.9

Step-by-step explanation:

C2(5)=(25)=2!(52)!5!=2154=10  p=((25)1)/(25)=(101)/10=0.9



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