Engineering Board Exam Reviewer · Binomial Distribution · easy

A fair coin is tossed 6 times. What is the probability of exactly 2 heads?

  1. 15/64
  2. 1/32
  3. 3/32
  4. 15/32

Answer

A. 15/64

Solution

P= 62≤ft( 12 )2≤ft( 12 )4=15/64.

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