10.16 Seasonal variation. You examine the average temperature in Chicago each month for man}.r years. Do you expect a line graph of the data to show seasonal variation? Describe the kind of seasonal variation you expect ED SEE. 10.18 Counting employed people. A news article says: More people were working in America in June than in any month since the end of1990. If that's not what you thought you read in the papers last week, don't worry. It isn't. The report that employment plunged in June, with nonfarm payrolls declining by 11 7,000, helped to persuade the F ederai Reserve to cut interest rates yet again. . ..In reality, however; there were 45?,000 more people employed in June than in May. 1What explains the difference between the fact that employment went up by 45?,000 and the ofcial report that employment went down by 117,000