![Why Statistics. ,[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-2-2048.jpg?cb=1665654235)
![The need for justification. ,[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-3-2048.jpg?cb=1665654235)
![Question 1. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-4-2048.jpg?cb=1665654235)
![Question 2. ,[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-5-2048.jpg?cb=1665654235)
![Mean, Mode, Median. ,[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-6-2048.jpg?cb=1665654235)
![1- Mean ,[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-7-2048.jpg?cb=1665654235)
![Find the mean of these data values- ,[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-8-2048.jpg?cb=1665654235)
![2- The Mode. ,[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-9-2048.jpg?cb=1665654235)
![Find the mode of this data set. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-10-2048.jpg?cb=1665654235)
![3- The Median. ,[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-12-2048.jpg?cb=1665654235)
![Find the median of this data set. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-13-2048.jpg?cb=1665654235)
![Now find the median of this data set. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-14-2048.jpg?cb=1665654235)
![Spread around the median and mean. ,[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-15-2048.jpg?cb=1665654235)
![[object Object],[object Object],[object Object],[object Object],[object Object],0 1993 3 1992 0 1991 0 1990 Rainfall (mm) Year 97 1994](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-16-2048.jpg?cb=1665654235)
![Spread around the median: the interquartile range. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-17-2048.jpg?cb=1665654235)
![Method. ,[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-18-2048.jpg?cb=1665654235)
![Over to you. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-19-2048.jpg?cb=1665654235)
![Answer ,[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-21-2048.jpg?cb=1665654235)
![Spread about the mean: Standard deviation. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-22-2048.jpg?cb=1665654235)
![[object Object],[object Object],[object Object],[object Object],[object Object],Method.](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-23-2048.jpg?cb=1665654235)
![[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-24-2048.jpg?cb=1665654235)
![Over to you. ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-25-2048.jpg?cb=1665654235)
![Answer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-28-2048.jpg?cb=1665654235)
![Phew!!!!!! ,[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-29-2048.jpg?cb=1665654235)
![Homework. ,[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/statisticalmethods-090304054455-phpapp01/75/statistical-methods-30-2048.jpg?cb=1665654235)
Statistical Methods
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Statistical Methods
- 11. Find the mode of this nominal data. Mode (Most frequently occurring category)= wheat. 17 Pasture 18 Barley 29 Wheat 3 Fruit 15 Vegetables 12 Rye 10 Clover Hectares Land Use
- 20. 5 December 7 November 11 October 15 September 17 August 17 July 15 June 12 May 9 April 7 March 5 February 4 January Average temperature Month
- 26. 82 10 75 9 42 8 63 7 70 6 60 5 92 4 80 3 75 2 50 1 Number of vehicles. Day
- 27. Answer. 6 724 82 5 625 75 1 764 42 3 969 63 4 900 70 3 600 60 8 464 92 6 400 80 5 625 75 2 500 50 x² x