In mathematics and statistics, the arithmetic mean ( ), arithmetic average, or just the mean or average (when the context is clear) is the sum of a collection of numbers divided by the count of numbers in the collection.
ɪn mˌæθɪmˈæɾɪks ænd stɐtˈɪstɪks, ðɪ ɚɹˈɪθmətˌɪk mˈiːn, ɚɹˈɪθmətˌɪk ˈævɹɪdʒ, ɔːɹ dʒˈʌst ðə mˈiːn ɔːɹ ˈævɹɪdʒ wɛn ðə kˈɑːntɛkst ɪz klˈɪɹ ɪz ðə sˈʌm əvə kəlˈɛkʃən ʌv nˈʌmbɚz dᵻvˈaɪdᵻd baɪ ðə kˈaʊnt ʌv nˈʌmbɚz ɪnðə kəlˈɛkʃən.