Researchers report that the average teen (age 13-17) sends 1742 ±112 text messages per month.

Which of the following is the best interpretation of this information?


A. No teen sent fewer than 1630 texts or more than 1854 texts in a single month.

B. 1742 is an estimate of the average number of texts sent by teens in one month.

C. The margin of error is ± 2 years of age.

D. The margin of error is ± 224 text messages