7. The top ten marks on a math cumulative exam were: 83, 95, 75, 93, 83, 82, 77, 83, 82, 90 The mode of this data is . [ll 8. The class average on a test is 52 with a standard deviation of 6. Pete scores 64 on his test. Determine Pete's zscore. [ll 9. The table shows the mean and standard deviation for the nal course marks of four grade eleven courses. If a student's mark is 65 in every course, in which course did this student did the best relative to the rest of the class. Explain your reasoning. [2] ---n 10. Twenty customers were asked to give a restaurant a score from one to ten based on customer satisfaction. The data is displayed in the table below. Calculate the mean, standard deviation, median and range of the satisfaction scores the restaurant received and explain how you calculated the data. Round to the nearest hundredth. [2] Customer Satisfaction Scores Frequency |,_a| Mean = Stande Deviation =