A Carnival Game Offers a $80 Cash Prize for Anyone

Multiple Choice

A carnival game offers a $80 cash prize for anyone who can break a balloon by throwing a dart at it.It costs $5 to play and you're willing to spend up to $20 trying to win.You estimate that you have a 8% chance of hitting the balloon on any throw.Find the standard deviation of the number of darts you throw.Assume that throws are independent of each other.

A) 0.94
B) 0.88
C) 0.79
D) 1.01
E) 0.81