tolong caranya plis,bsk di kumpulin!!!!

1) a. Mean =[tex] \frac{51}{8} [/tex] = 6,75
         Modus = 8
    b. Mean = [tex] \frac{53}{8} [/tex] = 6,625
        Modus = 5
    c. Mean = [tex] \frac{1250}{8} [/tex] = 156,25
        Modus = 100