If the expected number of heads in n tosses of a fair coin is 45, then n =

  1. 180
  2. 22.5
  3. 45
  4. 90
Answer

D) 90

n 12 = 45 Rightarrow n = 90. SLO M-09-C-07 · Understanding

Mathematics MCQ · More Relative and Expected Frequencies MCQs · Practise