find the standard deviation of all elements in an array in go

main.go
package main

import (
    "fmt"
    "math"
    "math/rand"
    "sort"
    "github.com/montanaflynn/stats"
)

func main() {
    // generate a random array of 10 numbers
    nums := make([]float64, 10)
    for i := 0; i < 10; i++ {
        nums[i] = rand.Float64() * 10
    }

    // get the mean of the numbers
    mean, _ := stats.Mean(nums)

    // calculate the sum of the squared differences
    var sumSqDiffs float64
    for _, num := range nums {
        diff := num - mean
        sumSqDiffs += diff * diff
    }

    // calculate the variance and standard deviation
    variance := sumSqDiffs / float64(len(nums)-1)
    stdDev := math.Sqrt(variance)

    // print the results
    fmt.Printf("Numbers: %v\n", nums)
    fmt.Printf("Mean: %v\n", mean)
    fmt.Printf("Variance: %v\n", variance)
    fmt.Printf("Standard Deviation: %v\n", stdDev)
}
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