Question

Determine a média aritmética dos valores: 8400; 9100; 7200; 6800; 8700


7.800

7.900

8.000

8.100

8.150

Answer 1

X = 8400 + 9100 + 7200 + 6800 + 8700
........+ 7800 + 7900 + 8000 + 8100 +8150
......._____________________________
........................................2


X = 17.500 + 7.200 + 6.800 + 8.700 +
.......7800 + 7900 + 8000+ 8100 + 8150
.......___________________________
....................................2

X = 24.700 + 6.800 + 8.700 + 7800 +
.......7900 + 8000 + 8100 + 8150
.......___________________________
...............................2


X = 31.500 + 8.700 + 7800 + 7900 +
........8000 + 8100 + 8150
........__________________________
...................2


X = 40.200 + 7800 + 7900 + 8000 +
.......8100 + 8150
.......__________________________
....................................2


X = 48000 + 7900 + 8000 + 8100 + 8150
......_____________________________
.......................................2


X = 55900 + 8000 + 8100 + 8150
......________________________
.................................2


X = 63900 + 8100 + 8150
......_________________
.........................2


X = 72000 + 8150
......____________
.....................2


X = 80150
......______
.............2

X = 40075

Answer 2

alternativa c ou seja 8000