River Pollution by Heavy Metals and Associated Impacts on the Adjacent Community, the Case of Holeta and Golli Rivers, Holeta Town, Ethiopia

Table 2

The total population and sample size of the respondents from the three study kebeles.

Kebeles	Total population of the kebele	Estimation of sample size	Sample size
Sadamo	1229	1229 × 159/3248 = 60	60
Galgal Kuyu	1523	1523 × 159/3248 = 75	75
Burka Walmara	496	496 × 159/3248 = 24	24
Total	3248		159