is a type of research design that uses previously gathered data to test a new hypothesis or explore new relationships among variables.

How do you summarize data in a two-way frequency table?

What is the slope of the line shown below?

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?