One way to do that is to explain the distribution of weights by dividing the dog population into groups based on those characteristics.
wˈʌn wˈeɪ tə dˈuː ðæt ɪz tʊ ɛksplˈeɪn ðə dˌɪstɹɪbjˈuːʃən ʌv wˈeɪts baɪ dᵻvˈaɪdɪŋ ðə dˈɑːɡ pˌɑːpjʊlˈeɪʃən ˌɪntʊ ɡɹˈuːps bˈeɪst ˌɔn ðoʊz kˌæɹɪktɚɹˈɪstɪks.