A culture of bacteria is infected with bacteriophage at

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A culture of bacteria is infected with bacteriophage at a multiplicity of 0.3. The probability of a single cell infected with 3 phages is

1. 0.9
2. 0.27
3. 0.009
4. 0.027

Correct Option: D

Probability of bacteria getting infected by a single bacteriophage= 0.3 i.e. P(A)= 0.3
Given, 3 phages, So, probability of bacteria getting infected by 3 phages= P(A) * P(B) * P(C)
= 0.3 * 0.3 * 0.3 = 0.027