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Sagot :
The Probability of getting at least 2 successes is 0.9692.
What is Probability?
Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Here, p = 0.7, q = 0.3 and n = 5
P(X≥2) = 1 - P(X<2)
= 1 - P(X = 0, 1)
= 1 - [ P(0) + P(1)]
= 1 - [⁵C₀p⁰q⁵ + ⁵C₁p¹q⁴]
= 1 - [1.(0.7)⁰(0.3)⁵ + 5.(0.7)¹(0.3)⁴]
= 1 - 0.03078
= 0.9692
Thus, the Probability of getting at least 2 successes is 0.9692.
Learn more about Probability from:
https://brainly.com/question/14210034
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