Probability 2386

We throw a die seven times. What is the probability that:
a) the first, second, and third times fall six and not in all the others,
b) 5 does not fall four times in a row, and yes, in the last 3 hours?

Correct answer:

a =  0.2233 %
b =  0.2233 %

Step-by-step explanation:

a=100 (1/6)3 (5/6)4=0.2233%
b=100 (5/6)4 (1/6)3=0.2233%

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