While the arithmetic mean is often used to report central tendencies, it is not a robust statistic: it is greatly influenced by outliers (values much larger or smaller than most others).
wˌaɪl ðɪ ɚɹˈɪθmətˌɪk mˈiːn ɪz ˈɔfən jˈuːzd tə ɹᵻpˈoːɹt sˈɛntɹəl tˈɛndənsiz, ɪɾ ɪz nˌɑːɾɚ ɹoʊbˈʌst stɐtˈɪstɪk: ɪɾ ɪz ɡɹˈeɪtli ˈɪnfluːənst baɪ ˈaʊtlˌaɪɚz vˈæljuːz mˈʌtʃ lˈɑːɹdʒɚ ɔːɹ smˈɔːlɚ ðɐn mˈoʊst ˈʌðɚz.