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/* eslint no-shadow: 0 */
const test = require("tap").test;const ss = require("../");
function rnd(x) {    return Math.round(x * 1000) / 1000;}
test("variance", function (t) {    t.test("can get the variance of a six-sided die", function (t) {        t.equal(rnd(ss.variance([1, 2, 3, 4, 5, 6])), 2.917);        t.end();    });
    t.test("the variance of one number is zero", function (t) {        t.equal(rnd(ss.variance([1])), 0);        t.end();    });
    t.test("the variance of no numbers cannot be calculated", function (t) {        t.throws(function () {            ss.variance([]);        });        t.end();    });    t.end();});