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 240=0.45×240=108. Heads after 300=0.48×300=144. Last 60 heads = 144 - 108 = 36.
Answer: C) 36
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