Answer
$Random\:numbers\:ensure\:that\:every\:member\:of\:$
$the\:population\:has\:an\:equal\:chance\:of\:being\:selected,\:$
$making\:the\:sample\:unbiased.\:They\:are\:also\:used\:in\:$
$simulations\:to\:study\:situations\:that\:are\:costly\:or\:$
$dangerous\:to\:examine\:in\:real\:life.$
Work Step by Step
$The\:sampling\:methods\:often\:use\:what\:are\:called\:random\:$
$numbers\:to\:select\:samples.\:The\:random\:numbers\:are\:also\:$
$used\:in\:simulation\:techniques.\:Instead\:of\:studying\:a\:real\:life\:$
$situation,\:which\:may\:be\:costly\:or\:dangerous,\:the\:researchers\:$
$create\:a\:similar\:situation\:in\:a\:laboratory\:or\:with\:a\:computer.\:$
$Then,\:by\:studying\:the\:simulated\:situation,\:researchers\:can\:gain\:$
$the\:necessary\:information\:about\: the\:real-life\:situation$
$\:in\:a\:less\:expensive\:or\:safe\:manner.$
