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A coin is tossed repeatedly. After 240 tosses the empirical probability of a head is 0.45. After 60 more tosses (300 total) the empirical probability of a head becomes 0.48. How many heads were obtained in the last 60 tosses?

Class 9Coins and DiceStatistics
  • A40
  • B72
  • C36
  • D32

Step-by-Step Solution

Heads after . Heads after . Last 60 heads = 144 - 108 = 36.
Answer: C) 36

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