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AJUTORRRRRRRRRRRRRRRRRRRRRRRRRRRRRR!!! numai punctul b) ​

AJUTORRRRRRRRRRRRRRRRRRRRRRRRRRRRRR Numai Punctul B class=

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Spinumaria94ask

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Explicație pas cu pas:

Media clasei e media aritmetica

M.a.=a+b+c+d+e+f+..n/n (aici fiind numarul elevilor)=20+27+32+35+24+15+4/22=157/22=7.13

a=10*2=20

b=9*3=27

c=8*4=32

d=7*5=35

e=6*4=24

f=5*3=15

g=4*1=4

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