State whether each of the following research examples is best summarized as grouped or ungrouped data. Explain your answer.

1.The number of symptoms of stress (ranging between 0 and 12 symptoms) experienced by 180 war veterans.

2.The number of calories in school lunches in a sample of 32 local middle schools.

3.The number of hours of sleep (per night) in a sample of 60 patients being treated for depression.

4.The marital status (single, married, divorced) in a sample of 96 individuals reporting high levels of life satisfaction.

5.The number of traffic violations ticked during a 3-month period in one of four high-crime communities.