Answer :
The values of the mean , median , mod and midrange are : 232.18, 213, (301, 185) and 58 respectively.
Calculating measures of dispersion
Using the data given :
- 185, 185, 186, 194, 212, 213, 245, 255, 277, 301, 301
The mean of the data :
- sum of values / frequency
Mean = 2554/11 = 232.18
2.)
The median is the middle value of the distribution. Hence, the median value is 213.
3.)
The mode is the most frequently occuring data in the distribution.
Hence , the mode are 301 and 185
4.)
The midrange is the value of the range divided by 2.
- Range = 301 - 185 = 116
- Midrange = 116/2 = 58
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