why do we pool biological samples if a sample is pooled, can the variance be calculated how to estimate biological variance why is pooling required for an experiment how do you calculate biological variances how to determine if the sample pooled why do we pool samples in experiments what is the purpose of a pooled sample? why are we pooling a sample how does a pool affect behavior how to estimate biological effect how to calculate variance of pooled samples why do people pool samples for research can we pool biological samples how to calculate variance why are we pooling the experimental sample? why are random effects used in experiments how many biological samples should be pooled how to calculate the variance of a pooled sample why do we pool biological data