As shown by the second illustration, the distributions have variances that are considerably smaller than in the first case, and the means are more distinguishable.
æz ʃˈoʊn baɪ ðə sˈɛkənd ˌɪləstɹˈeɪʃən, ðə dˌɪstɹɪbjˈuːʃənz hæv vˈɛɹiənsᵻz ðæt ɑːɹ kənsˈɪdɚɹəbli smˈɔːlɚ ðɐn ɪnðə fˈɜːst kˈeɪs, ænd ðə mˈiːnz ɑːɹ mˈoːɹ dɪstˈɪŋɡwɪʃəbəl.