Answer
$Samples\:save\:time\:and\:money,\:provide\:information\:$
$that\:might\:be\:otherwise\:inaccessible,\:and\:offer\:more\:$
$detailed\:insights\:into\:specific\:subjects.$
Work Step by Step
$The\:sample\:is\:used\:to\:get\:information\:about\:a\:population\:$
$for\:several\:reasons:$
$1.\:It\:saves\:the\:researcher\:time\:and\:money.$
$\\2.\:It\:enables\:the\:researcher\:to\:get\:information\:that\:$
$he\:or\:she\:might\:not\:be\:able\:to\:obtain\:otherwise.$
$\\3.\:It\:enables\:the\:researcher\:to\:get\:more\:detailed\:information\:$
$about\:a\:particular\:subject.$