7.1 Mean and Mode Focus: Given some data, calculate the Mean and Mode. The following test scores were assigned to students on their Chapter 6 Final Exam: 65 89 51 82 57 98 48 59 78 78 91 77 65 77 85 87 77 90 77 91 100 70 88 50 60 83 79 76 Organize the data into a Stem & Leaf Chart

Mean....Another word for "Average". Mean....Find the mean by adding all 28 test scores together, and divide by 28. The total of all scores is 2128....divided by 28 Mean score is 76% The Mode is the most common score in the data. In this case the mode is 77%. It occurs 4 times on this test. If more than one number appears the most, there would be more than one mode. Example: If 77 appeared 4 times and 100 appeared 4 times on this test, the modes would be 77 and 100. If all numbers appear only once, we would say that there is no mode. Homework..... Page 260-261 Numbers 1-6