2- ( - 4 ) + 3 (- 6 ) -2 =
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3.1
the number of trucks reading horizontally from the vertical scale is
2 + 2 + 3 + 3 + 3 + 4 + 5 = 22
average number of trucks = = 3.1 ( to 1 dec. place)
3.1
the number of trucks reading horizontally from the vertical scale is
2 + 2 + 3 + 3 + 3 + 4 + 5 = 22
average number of trucks = = 3.1 ( to 1 dec. place)