find the variance of a list of numbers in go

main.go
package main

import (
    "fmt"
    "math"
    "math/rand"
    "time"
)

func main() {
    rand.Seed(time.Now().UnixNano())

    // Example list of numbers
    list := []float64{3.1, 4.0, 4.9, 5.4, 5.8, 6.2}

    // Calculate the mean of the list
    var sum float64
    for _, num := range list {
        sum += num
    }
    mean := sum / float64(len(list))

    // Calculate the variance of the list
    var variance float64
    for _, num := range list {
        variance += math.Pow(num-mean, 2)
    }
    variance /= float64(len(list) - 1)

    fmt.Printf("List: %v\nMean: %f\nVariance: %f\n", list, mean, variance)
}
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