Decagonal spinners Two perfectly balanced regular decagonal spinners are spun. Spins are independent and each spinner is equally likely to show any one of the digits 0,..., 9. Find probabilities for the following events. (a) The total is a multiple of 3. (b) The total is a multiple of 4. (c) The total is a multiple of either 3 or 4.

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Decagonal spinners
Two perfectly balanced regular decagonal spinners are
spun. Spins are independent and each spinner is equally
likely to show any one of the digits 0, ..., 9.
Find probabilities for the following events.
(a) The total is a multiple of 3.
(b) The total is a multiple of 4.
(c) The total is a multiple of either 3 or 4.
(d) The total is a multiple of one of 3 or 4 but not both.
Transcribed Image Text:Decagonal spinners Two perfectly balanced regular decagonal spinners are spun. Spins are independent and each spinner is equally likely to show any one of the digits 0, ..., 9. Find probabilities for the following events. (a) The total is a multiple of 3. (b) The total is a multiple of 4. (c) The total is a multiple of either 3 or 4. (d) The total is a multiple of one of 3 or 4 but not both.
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