In a number guessing game. You ask a person to guess a number from one 1 to 10. If the person makes a random guess, what is the probability their guess will be less than 99?
A bag contains 10 red marbles, 8 white marbles, 5 green marbles. If one marble is drawn from the bag but not replaced, what is the probability of drawing a red marble then a green marble?
Ans
P(x<99) = 1
A bag contains 10 red marbles, 8 white marbles, 5 green marbles. If one marble is drawn from the bag but not replaced, what is the probability of drawing a red marble then a green marble?
P(red then green) = (10/23)*(5/22) = 0.0988
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