Mathematics, 10.07.2019 13:10 nnn79

Abiased spinner which has 1, 2, 3 and 1 on it is spun three times.
a. what is the possibility of getting exactly 2 ones? (note: a labeled tree diagram for 3 spins of the spinner, showing probabilities on the branches and all possible outcomes and associated probabilities must be done first).
b. what is the probability of getting at most 2 ones?

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Abiased spinner which has 1, 2, 3 and 1 on it is spun three times.
a. what is the possibility...