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calculati media aritmetica a numerelor c) 0,74 0,7 1 1pe 2 2 7pe 10
d) 21pe 10 70 11,3 4,1 dau coroana


Răspuns :

Media aritmetica a 2 numere x si y, inseamna: (x+y)/2

c) media aritmetica = (0,74+0,71+1/2+2+7/10)/5=(3,45+5/10+7/10)/5=
=(3,45+12/10)/5=(3,45+1,2)/5=4,65/5=0,93

d) media aritmetica=(21/10+70+11,3+4+1)/5=(2,1+86,3)/5=88,40/5=17,68