- #1
rwf
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I have some data from gas emission samples, part of the data was sampled in a region with a characteristic A and elsewhere with characteristic B. However, each region corresponds to a different percentage of total area.
I want to calculate the central value (average or median) of unbalanced with different weights data with the following characteristics:
- I have 35 observations in total, with 15 observations in group A and 20 in group B.
- The 20 observations of group B show average much higher (aprox. 40x higher) than group A.
- Group A corresponds to 58% and group B to 42% of my study area.
I used ponderate average to calculate overall average data:
((Average Group A * 0.58) + (0.42 * Average Group B)) / 2.
Am i right doing this?
And how can i calculate those overall median?
Thanks for your attention.
I want to calculate the central value (average or median) of unbalanced with different weights data with the following characteristics:
- I have 35 observations in total, with 15 observations in group A and 20 in group B.
- The 20 observations of group B show average much higher (aprox. 40x higher) than group A.
- Group A corresponds to 58% and group B to 42% of my study area.
I used ponderate average to calculate overall average data:
((Average Group A * 0.58) + (0.42 * Average Group B)) / 2.
Am i right doing this?
And how can i calculate those overall median?
Thanks for your attention.