Irina’s basketball team has a 1 in 6 chance of winning the first-place trophy. She rolled a six-sided number cube repeatedly, assigning her team a number from 1 to 6 to demonstrate the probability that her team would win.

Irina is using repeated rolls of a number cube to model the team’s 1-in-6 chance of winning. Repeatedly using a random process to represent an uncertain event is a simulation. A survey asks people questions, while an observational study records events without modeling them this way.

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