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

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

Explain your answer.

The time (in seconds) it takes 100 children to a cognitive skills game.

The number of single mothers with 1, 2, 3, or 4 children.

The number of teenagers who have experimented with smoking (yes, no).

The age (in years) of freshman students in a local college.

The handedness (right- or left-handed) of gifted children.