oblicz średnie arytmetyczne podanuch liczb:
a)112 112 105 67 1004
b)o,15 1,5 3,17 14,5 2,03 1
c)-12 27 -10,5 3,5
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a ) (112+112+105+67+1004)/5=1400/5=280
b) (0,15+1,5+3,17+14,5+2,03+1)/6=22,35/6=3,725
c) [(-12)+27+(-10,5)+3,5]/4=8/4=2
a 112+112+105+67+1004=1400:5=280
b 0,15+1,5+3,17+14,5+2,03+1=22,35:6=3,725
c -12+27+(-10,5)+3.5=8:4=2