During the "National Day" Golden Week, the number of people traveling to a certain scenic spot every day during the seven-day holiday changes as shown in the table (positive numbers indicate more peop

During the "National Day" Golden Week, the number of people traveling to a certain scenic spot every day during the seven-day holiday changes as shown in the table (positive numbers indicate more people than the previous day, negative numbers indicate

(1) ∵The number of tourists on September 30 is recorded as 20,000,

∴The number of tourists on October 2 is 2+1.6+0.8=4.4 (ten thousand people) ;

(2) According to the chart, the number of tourists in the seven days are:

2+1.6=3.6, 4.4, 4.4+0.4=4.8, 4.8-0.4=4.4, 4.4- 0.8=3.6, 3.6+0.2=3.8, 3.8-1.2=2.6,

So, the largest number of tourists is October 3, and the least is October 7,

the difference is : 4.8-2.6=2.2 (ten thousand people);

(3) Therefore, the total number of tourists in the place during this Golden Week is: 3.6+4.4+4.8+4.4+3.6+3.8+2.6=27.2 (ten thousand people).

(4) Draw a line chart as shown in the figure.