A study involves a large number of families with exactly four children. After finding that the mean number of girls is 1.97, researchers rounded the result to 2 because it impossible to get 1.97 girls in a family of four children.

Does It Make Sense? For Exercises, determine whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly; not all of these statements have definitive answers, so your explanation is more important than your chosen answer.