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Welcome to the casino!

Here, you'll find various slot machines, each with its own chances of winning and potential rewards. Your goal is to find the best machine to play.

Each slot machine has two outcomes: you either win or lose. Wins can be big or small, but if you lose, you get nothing. Each machine also has its own winning probabilities—some machines win more often than others. Some wins are rare, like winning a lottery, while some are more common.

You only get one chance to pick a machine, so you want to test them first. The casino lets you pay 0.01 points to play a machine for fun, with no real rewards. By playing multiple times, you can figure out how often and how much you might win from different machines.

After trying out the machines, pick the one you think is the best. The casino will play that machine, and you might win the amount it offers. But you also might lose and get nothing. Then, the casino subtract your score with the number of points that you spent to sample the different slot machines in that round to find your final score.

Choose wisely because the person with the most points wins a bonus of 10 GBP. Enjoy your time at the casino!

Please read this instruction carefully because we will ask some questions to test how well you understand the task. When you are ready, click Next to see an example trial of the task.

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