The repair costs for five cars which were crashed by a safety testing organization were as follows: $100, $120, $180, $220, and $130. find the mean cost of repair.
Mean = Total / number
$100, $120, $180, $220, $130, number = 5
Mean = ($100 + $120 + $180 + $220 + $130) / 5
Mean = $750/5
Mean = $150
Hope this helps.