profMI

# profMI.py
#
# 
# Il professor MII insegna in una classe universitaria formata da
# ragazzi e ragazze. Viene fornita una lista contenente una lista 
# per ogni studente. Il primo numero della lista è l'idendificativo
# dello studente, il secondo numero della lista rappresenta il sesso;
# (0=MASCHIO,1=FEMMINA,2=LGBT). I restanti numeri indicano i voti
# conseguiti per quello studente.
# Il programma determina la media dei voti per genere sessuale.
#
# by Andrea Bianchini (2021)

from random import randint

N = 50
MIN = 18
MAX = 31
NVOTI = 5

#generazione casuale lista dei voti:
cl=[]
for i in range(N):
    student=[]
    student.append(i)
    student.append(randint(0,2))
    for j in range(NVOTI):
        student.append(randint(MIN,MAX))
    cl.append(student)
                   
#calcolo
mediatot=[0.0,0.0,0.0]
ng=[0,0,0]
for i in range(N):
    medias=[0.0,0.0,0.0]
    student=cl[i]
    sex = student[1]
    ng[sex]+=1
    for j in range(NVOTI):
        medias[sex]+=float(student[2+j])
    medias[sex]/=float(NVOTI)
    mediatot[sex]+=medias[sex]

mediatot[0]/=float(ng[0])
mediatot[1]/=float(ng[1])
mediatot[2]/=float(ng[2])

print("Lista studenti = ", cl)
print()
print("Media voti maschi = %.2f" %mediatot[0])
print("Media voti femmine = %.2f" %mediatot[1])
print("Media voti LGBT = %.2f" %mediatot[2])

Esempio:

Lista studenti =  [[0, 0, 23, 23, 22, 24, 28], [1, 0, 22, 18, 18, 24, 28], [2, 0, 30, 25, 28, 21, 25], [3, 1, 23, 18, 23, 24, 30], [4, 0, 23, 19, 23, 25, 30], [5, 0, 19, 24, 30, 29, 26], [6, 1, 19, 21, 21, 20, 22], [7, 1, 27, 30, 18, 26, 20], [8, 1, 30, 24, 29, 21, 23], [9, 2, 31, 19, 27, 30, 25], [10, 2, 31, 27, 21, 31, 22], [11, 1, 19, 25, 19, 31, 20], [12, 2, 29, 24, 24, 26, 29], [13, 0, 26, 23, 25, 26, 29], [14, 0, 25, 29, 23, 21, 29], [15, 0, 19, 28, 22, 20, 29], [16, 1, 28, 21, 24, 22, 18], [17, 2, 19, 22, 27, 25, 22], [18, 1, 31, 22, 18, 27, 20], [19, 2, 21, 25, 25, 19, 23], [20, 2, 27, 23, 30, 25, 21], [21, 1, 26, 29, 23, 30, 30], [22, 1, 29, 22, 18, 30, 26], [23, 0, 23, 30, 28, 20, 19], [24, 1, 27, 29, 28, 19, 29], [25, 0, 25, 27, 22, 24, 31], [26, 1, 30, 26, 28, 26, 28], [27, 0, 18, 22, 30, 27, 26], [28, 1, 27, 18, 25, 24, 18], [29, 0, 31, 23, 24, 21, 30], [30, 2, 30, 28, 19, 24, 25], [31, 2, 23, 22, 23, 22, 19], [32, 2, 29, 31, 30, 25, 29], [33, 1, 30, 21, 29, 20, 23], [34, 1, 21, 26, 27, 23, 18], [35, 1, 29, 25, 20, 29, 25], [36, 2, 18, 21, 20, 22, 31], [37, 1, 30, 20, 19, 26, 20], [38, 0, 26, 19, 22, 22, 19], [39, 0, 31, 27, 19, 29, 18], [40, 2, 26, 26, 23, 24, 21], [41, 2, 28, 26, 23, 22, 25], [42, 2, 29, 27, 29, 25, 24], [43, 1, 29, 21, 18, 31, 29], [44, 1, 24, 22, 20, 31, 21], [45, 1, 20, 21, 30, 28, 23], [46, 0, 26, 24, 29, 26, 23], [47, 1, 22, 26, 26, 31, 26], [48, 2, 18, 23, 25, 23, 21], [49, 0, 18, 22, 26, 23, 23]]

Media voti maschi = 24.43
Media voti femmine = 24.39
Media voti LGBT = 24.70
>>>