CALCULATE THE MEAN DEVIATION FROM 1)THE MEAN,THE MEDIAN OF THE FOLLOWING SET OF EXAM MAQRKS ,45,32,37,46,50,60,70,0,84

http://infinity.cos.edu/faculty/woodbury/stats/tutorial/Disp_MD.htm

To calculate the mean deviation from the mean and median of a given set of exam marks, follow these steps:

Step 1: Calculate the Mean
To calculate the mean (average) of the exam marks, add up all the values and divide by the total number of values. In this case:
Mean = (45 + 32 + 37 + 46 + 50 + 60 + 70 + 0 + 84) / 9 = 384 / 9 = 42.67 (rounded to 2 decimal places)

Step 2: Calculate the Median
To calculate the median, you need to arrange the values in ascending order. The median is the middle number if you have an odd number of values or the average of the two middle numbers if you have an even number of values.
In this case, the values arranged in ascending order are: 0, 32, 37, 45, 46, 50, 60, 70, 84.
Since we have 9 values, the median is the middle number, which is 46.

Step 3: Calculate the Mean Deviation from the Mean
To calculate the mean deviation from the mean, you need to find the absolute difference between each value and the mean, and then find the average of those differences.
The absolute difference between each value and the mean is:
|45 - 42.67| = 2.33
|32 - 42.67| = 10.67
|37 - 42.67| = 5.67
|46 - 42.67| = 3.33
|50 - 42.67| = 7.33
|60 - 42.67| = 17.33
|70 - 42.67| = 27.33
|0 - 42.67| = 42.67
|84 - 42.67| = 41.33

The mean deviation from the mean is the average of these absolute differences:
Mean Deviation from the Mean = (2.33 + 10.67 + 5.67 + 3.33 + 7.33 + 17.33 + 27.33 + 42.67 + 41.33) / 9 = 157.33 / 9 = 17.48 (rounded to 2 decimal places)

Step 4: Calculate the Mean Deviation from the Median
To calculate the mean deviation from the median, you need to find the absolute difference between each value and the median, and then find the average of those differences.
The absolute difference between each value and the median is:
|45 - 46| = 1
|32 - 46| = 14
|37 - 46| = 9
|46 - 46| = 0
|50 - 46| = 4
|60 - 46| = 14
|70 - 46| = 24
|0 - 46| = 46
|84 - 46| = 38

The mean deviation from the median is the average of these absolute differences:
Mean Deviation from the Median = (1 + 14 + 9 + 0 + 4 + 14 + 24 + 46 + 38) / 9 = 150 / 9 = 16.67 (rounded to 2 decimal places)

Therefore, the mean deviation from the mean is 17.48 and the mean deviation from the median is 16.67 for the given set of exam marks.