Amusic teacher had noticed that some students went to pieces during exams. he wanted to test whether this performance anxiety was different for people playing different instruments. he took groups of guitarists, drummers, and pianists and measured their anxiety during the different exam they took. he also noted the difficulty level of the exam they were taking. he wanted to see whether the type of instrument played affected performance anxiety when controlling for the grade of the exam. what analysis should he use?

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? define a variable for the situation. write an inequality that represents the situation. solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

The circumference of a circle is 5 pi cm. what is the area of the circle?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation