Simulate Dice Sum Probability

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Problem

Write a Python function that simulates rolling two fair six-sided dice for a given number of trials and returns the empirical probability that the sum of the two dice is 7. The function should take an integer trials as input and return a floating-point probability.

Constraints

1 <= trials <= 10^7
Each die roll is an integer from 1 to 6 chosen uniformly at random
The function returns a floating-point value in the range [0, 1]

Function Signature

def empirical_probability_sum_seven(trials):

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