func math/rand.Intn
2 uses
math/rand (current package)
rand.go#L464: func Intn(n int) int { return globalRand().Intn(n) }
net/http
server.go#L3154: interval := pollIntervalBase + time.Duration(rand.Intn(int(pollIntervalBase/10)))
The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)