Truck pollution: In an experiment to determine the effect of ambient temperature on the emissions of oxides of nitrogen (NO ) of diesel trucks, ten trucks were run at temperatures of 40 F and 80 .F. The emissions, in parts per billion, are presented in the following table. Truck 40 OF 80 OF 840.7 821.2 753.2 765.2 855.7 842.6 4 801.2 797.1 785.4 764.3 862.9 809.5 882.7 850.6 8 740.3 694.5 9 748.1 772.9 10 848.6 794.7 Send data to Excel