1. Objective: To calculate mean, median, mode and Range. Class Notes Sec 8.1 1. The odds for an event are 4:11. What is the probability the event WON’T occur? 2. The probability for an event is. What are the odds the event WON’T occur? 3. A lock has a 6 digit combination code which can be digits from 0 to 9. How many different combinations can be made? 4. How many ways can you arrange the letters in the word JERK?

2. 5. Mary’s math scores are 87, 75, 59, and 83. Use this data to answer each question. b. What is the mode? a. What is the mean? c. What is the median? d. What is the range? e. Mary has one more math test. She would like to get a B (80%) on her report card. What score must she get on the next test to accomplish this goal?

3. 6. A class has 20 students. The mean score on a test for 19 of the students was 78%. The 20 th student earned a 100%. What is the new mean for the class?