Respuesta :

Prob( getting for 1's in first 4 throws)  = (1/6)^2 * 5/6 =  5/ 7776

There are 5 ways to get 4 1's  so this Probability is  25/7776

so probability of getting 2 - 6  4 times =  5 * 25 / 7776

= 125 / 7776 = Prob ( 4 of a kind)

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