Mean, median, mode and range
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This document defines and provides examples for calculating mean, median, mode, and range for a set of numbers. It explains that mean is the average found by summing all values and dividing by the count, median is the middle number when values are ordered, mode is the most frequent number, and range is the difference between the highest and lowest values. Steps are provided for calculating each measure, including examples calculating the mean, median, mode, and range for sets of quiz scores, marathon times, and gasoline prices.
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LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
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9
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Mean, median, mode and range
- 1. Mean,Median,Mode and Range IFFRAH & AFROOZ
- 3. Definition of mean The average of a group of numbers. 2,5,2,1,5 Mean= 3
- 4. Mean is found by evening out all numbers. 2,5,2,1,5
- 5. How to find the mean of a group of numbers? Step 1: Calculate the sum by adding all the numbers up. Step 2: Find the amount of numbers in the group. Step 3: Divide the sum with the amount if numbers. Example: What is the mean of 2, 7 and 9? Add the numbers: 2 + 7 + 9 = 18 Divide by how many numbers (i.e. we added 3 numbers): 18 ÷ 3 = 6 So the Mean is 6
- 6. Average weight of a group of chimpanzees: Chimp 1 weighs 20 kg Chimp 2 weighs 10 kg Chimp 3 weighs 15 kg Chimp 4 weighs 20 kg Chimp 5 weighs 35 kg Sum Count
- 7. MEdian = middle Arrange in order
- 8. Definition of Median The middle number in a set of ordered numbers. 1 3 7 1310 MEDIAN = 7
- 9. How to find the median of a group of numbers? Step 1: Arrange the numbers in order from least to greatest. Step 2: Find the middle number. Step 3: If there are two middle numbers find the mean of the two numbers. Example: What is the median of 4,8,16,2? Arrange the numbers: 2,4,8,16 Find the middle number by working out the mean of the two numbers: 4+8 = 12 12 ÷ 2 = 6 So the median is 6
- 10. During the first marking period, Nicole had gotten the following scores in the math quiz, What was the median quiz score? 90, 92, 93, 88, 95, 88, 97, 87 Sum Count
- 11. Mode = repetition Most popular
- 12. Definition of Mode: The number that appears the most frequently in a set of numbers. 1 1 3 7 10 MODE= 1
- 13. How to find mode in a group of numbers? Step 1: Arrange the numbers in order from least to greatest. Step 2: Find the number that is repeated the most. Example: Which is the mode number 29,8,4,8,19 ? Arrange the numbers : 4,8,8,19,29 Find the most repeated number: 8 is repeated twice So 8 is the mode number
- 14. A marathon race was completed by 8 participants. What is the mode of these times given in hours? 3.5hr, 2.7 hr, 8.3 hr, 3.5 hr, 5.1 hr, 4.9 hr, 3.5,hr, 2.7 hr Most frequent =
- 15. Range = difference Highest and lowest numbers
- 16. Definition of Range: The difference between the greatest and the least value in a set of numbers. 3 229 12 20 RANGE = 19
- 17. How to find range in a group of numbers? Step 1: Arrange the numbers in order from least to greatest. Step 2: Find the lowest and highest numbers. Step 3: Work out the difference between the two numbers. Example: What is the range of 21,18,24,19,27? Arrange the numbers: 18,19,21,24,27 Work out the difference between the highest and lowest numbers: 27-18 = 9 So 9 is the range value
- 18. The Jaeger family drove through 6 midwestern states on their summer vacation. Gasoline prices varied from state to state. What is the range of gasoline prices? $1.79, $1.61, $1.96, $2.09, $1.84, $1.75 Difference =
- 19. ACTIVITY Roll the dice to get 6 values. Group 1 and 4: Median and Range Group 2 and 3: Mean and Mode