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A coin is based so that the head is 3 times as likely to occur as tail. If the coin is tossed three times, find the probabilty distribution of number of tails.
cbse
class12
modelpaper
2011
sec-b
q22
math
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asked
Dec 28, 2012
by
thanvigandhi_1
edited
Dec 29, 2012
by
thanvigandhi_1
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Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin three times and notes the number of heads. If she gets 1, 2, 3 or 4 she tosses a coin once and notes whether a head or tail is obtained. If she obtained exactly one head, what is the probability that she threw 1, 2, 3 or 4 with the die?
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A coin is tossed 20 times and head occurred 12 times . How many times did tail occur
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