The answer is B. The diagram shows that n is the difference between the total number of children who rode Twister on Friday and Saturday, so the answers A and D are excluded. The answer C is not true because there were just 165 boys (not 367 + 165) and 218 girls who rode Twister.

thankyou for your help...I have a question... how do you know N stands for the difference between the total number of children who rode twister on Friday and Saturday

Apr 28th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.