Math Question

A teacher wants to test the effectiveness of two different math textbooks. She divides her class into two groups. One group studies out of textbook \( A \) and the other out of textbook \( B \). \( A t \) the end of the year she tests both groups to see which one scores higher. This is an example of:
A. An observational study
B. An experiment
C. Asurvey



AIR MATH homework app,
absolutely FOR FREE!

  • AI solution in just 3 seconds!
  • Free live tutor Q&As, 24/7
  • Word problems are also welcome!

Scan the QR code below
to download AIR MATH!