i need an expect that will show how to clean that code in code format and how did they come up the outcomes of each question below is the database age,sex,bmi,children,smoker,region,charges

$19,$female,$27\mathrm{.}9,0,$yes,southwest,$16884\mathrm{.}924$

$18,$male,$33\mathrm{.}77,1,$no$,$southeast,$1725\mathrm{.}5523$

$28,$male,$33,3,$no$,$southeast,$4449\mathrm{.}462$

$33,$male,$22\mathrm{.}705,0,$no$,$northwest,$21984\mathrm{.}47061$

$32,$male,$28\mathrm{.}88,0,$no$,$northwest,$3866\mathrm{.}8552$

$31,$female,$25\mathrm{.}74,0,$no$,$southeast,$3756\mathrm{.}6216$

$46,$female,$33\mathrm{.}44,1,$no$,$southeast,$8240\mathrm{.}5896$

$37,$female,$27\mathrm{.}74,3,$no$,$northwest,$7281\mathrm{.}5056$

$37,$male,$29\mathrm{.}83,2,$no$,$northeast,$6406\mathrm{.}4107$

$60,$female,$25\mathrm{.}84,0,$no$,$northwest,$28923\mathrm{.}13692$