What Does the .2 in print(statistics.2) in This Code?

Hi. What does .2 mean in print(statistic.2) in this code:

 

func calculateStatistics(scores: [Int]) -> (min: Int, max: Int, sum: Int) {

    var min = scores[0]

    var max = scores[0]

    var sum = 0

 

    for score in scores {

        if score > max {

            max = score

        } else if score < min {

            min = score

        }

        sum += score

    }

 

    return (min, max, sum)

}

let statistics = calculateStatistics(scores: [5, 3, 100, 3, 9])

print(statistics.sum)

print(statistics.2)

 

Thank you in advance.

God bless, Proverbs 31

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