As people age, daily stress and worry decrease and happiness increases, according to an analysis of 340,847 adults ages 18 to 85 in a certain country. The graphs show a portion of the research. Complete parts (a) and (b) below. Percentage Reporting Stress 60 50- 40 30- 20- 10- 0 22 Age 62 Percentage Reporting Stress A 60 50- 40- 30- 20- 10- 0- 0 (62,29) 15 30 45 60 75 Age

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