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find the probability that all 7 witnesses would pick the same person.

rainbow

New member
Oct 25, 2018
13
In a homicide case, 7 different witnesses picked the same man from a lineup. The line up contained 5 men. If the identification were made by random guesses, find the probability that all 7 witnesses would pick the same person.
 

Wilmer

In Memoriam
Mar 19, 2012
376
Hint: the last 6 witnesses each have probability 1/5 of matching 1st witness.
 

Wilmer

In Memoriam
Mar 19, 2012
376
Btw, that means exactly 64 times out of a million attempts!!