Oblicz średnią arytmetyczna podanyc liczb:
a)7, 12, 35, 6
b)3,5 1,5 0,5 4,5 2,5
c)5 -5 12 3 -3
d)36 17 -26 -40 67 0
Daję naj. ;D
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a) (7+12+35+6)/4= 15
b) (3,5+,1,5+0,5+4,5+2,5)/5= 2,5
c) (5+(-5)+12+3+(-3))/5= 12/3
d) (36+17+(-26)+(-40)+67+0)/6= 9
a)7, 12, 35, 6
7+12+35+6 60
----------------- = ------- = 15
4 4
b)3,5 1,5 0,5 4,5 2,5
3,5 +1,5 + 0,5 + 4,5 + 2,5 12,5
--------------------------------------- = -------- = 2,5
5 5
c)5 -5 12 3 -3
5 + (-5 ) + 12 + 3 + ( -3) 12
----------------------------------- = -------- = 2,4
5 5
d)36 17 -26 -40 67 0
36 + 17+ (-26) + (-40) + 67 + 0 54
-------------------------------------------- = --------- = 9
6 6