A weighted average, or weighted mean, is an average in which some data points count more heavily than others in that they are given more weight in the calculation.
ɐ wˈeɪɾᵻd ˈævɹɪdʒ, ɔːɹ wˈeɪɾᵻd mˈiːn, ɪz ɐn ˈævɹɪdʒ ɪnwˌɪtʃ sˌʌm dˈeɪɾə pˈɔɪnts kˈaʊnt mˈoːɹ hˈɛvili ðɐn ˈʌðɚz ɪn ðæt ðeɪ ɑːɹ ɡˈɪvən mˈoːɹ wˈeɪt ɪnðə kˌælkjʊlˈeɪʃən.