Direct drivers of deforestation in Amazon countries Cattle ranching Cattle ranching is the leading cause of deforestation in the Amazon rainforest. In Brazil, this has been the case since at least the 1970s: government figures attributed 38 percent of deforestation from 1966-1975 to large-scale cattle ranching.
The sampling frequency or sampling rate, fs, is the average number of samples obtained in one second (samples per second), thus fs = 1/T. Reconstructing a continuous function from samples is done by interpolation algorithms.
Answer Wiki. In cluster sampling we select a sample of clusters, not all clusters. We might then subsample the clusters and subsample the subsamples of clusters. Such samples are multi-stage cluster samples. Cluster sampling is less accuratefor the same sample size but allows a larger sampe for the same cost. In stratified sampling we sample from every stratum. This is more precises than a simple random sample for the same sample size.