Solution: What is the probability of getting at least 2 heads when a coin is tossed four times?

The probability of getting at least 2 heads when a coin is tossed four times is?

What is the probability of getting at least 2 heads when a coin is tossed four times?

Problem Statement: EE Board April 1996

The probability of getting at least 2 heads when a coin is tossed four times is?

Problem Answer:

The probability of getting at least 2 heads when a coin is tossed four times is 11/16.

Solution:

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