Presentation on theme: "0-12 Mean, Median, Mode, Range and Quartiles Objective: Calculate the measures of central tendency of a set of data."— Presentation transcript:
0-12 Mean, Median, Mode, Range and Quartiles Objective: Calculate the measures of central tendency of a set of data.
Measures of Central Tendency Numbers used to represent a set of data
Measures of Center Mean: The sum of the numbers in a set of data divided by the number of items Median: The middle number in a set when arranged in numerical order Mode: The number that appears most often in a set of data RANGE: The difference between the greatest and the least data values.
P38, # 20 On her first five history tests, Yoko received the following scores: 82, 96, 92, 83, and 91. What test score must Yoko earn on the sixth test so that her average (mean) for all six tests is 90?
5- Number Summary Minimum Lower Quartile- Q1 Median- Q2 Upper Quartile- Q3 Maximum
Definitions of 5-number Summary Minimum- Smallest piece of data Lower Quartile- Divides the lower half of data into two equal parts, AKA- Q1 Median- Separates data into two equal parts- AKA- Q2 Upper Quartile- Divides the upper half of data into two equal parts AKA- Q3 Maximum- Largest piece of data