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probability; likelihood; chances
宝くじに当たる確率は非常に低いと言われる。
The probability of winning the lottery is said to be very low.
天気予報によると明日の降水確率は七十パーセント。
According to the weather forecast, the chance of rain tomorrow is 70%.
成功する確率を上げるために準備を万全にしよう。
Let's be fully prepared to increase the probability of success.