Use these 20 test scores to create a grouped frequency distribution 20 30 45 60 58 15 95 23 15 48 35 55 39 84 89 88 55 41 75

29 Remember the headings (should be one line across): Score Interval ______f__________p__________P_______cp_ What variables should be considered when determining the norm sample? Why did you select these variables?