While shifting glass bottles from one country to the other, on an average, 1 out of 9 bottles breaks. What is the probability that out of 4 bottles, at least 3 will arrive safely?

Question

Akarsha Mandala · Answer

Hi Tazeem Ahmed,
Required probability = 4_C_3 * (8/9)^3(1/9) + 4_C_4(8/9)^4 = 2048/2187
Hope this helps!

Somya Pratap Singh · Answer

22528/6561

While shifting glass bottles from one country to the other, on an average, 1 out of 9 bottles breaks. What is the probability that out of 4 bottles, at least 3 will arrive safely?

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