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A coin is tossed three times in successi...

A coin is tossed three times in succession. If `E` is the event that there are at least two heads and `F` is the event in which first throw is a head, then find `P(E//F)dot`

Text Solution

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The correct Answer is:
`3//4`
`P(E)=4/8=1/2{because"favorable cases are"THH, HTH, HHT, HHH]`
`P(F)=4/8=1/2[because"favorable cases are"HTH, HHT,HT T, HHH]`
`P(EnnF)=3/8`
`P(E//F)=(P(EnnF))/(P( F))=(3//8)/(1//2)=3/4`
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