Random sampling 13 Random Sampling 3 Random samples 3 Biology 2 Correlation 2 Frequency Distribution 2 Homogenetly 2 Normal Distribution 2 Random Samples 2 Ratio estimation 2 Regression 2 Regression analysis 2 Simple random sampling 2 normal distribution 2 Based Sampling 1 Binomial Distribution 1 Cumulative frequency Distributions 1 Double sampling 1 ESTIMATION OF SAMPLE SIZE 1 Estimation procedure 1 Hypothesis 1 Mean 1 Mean Deviation 1 Probability 1 Random Sampling with Replacement 1 Random sample 1 Random sampling correlation 1 Ratio estimators 1 Regression estimators 1 SAMPLING PROPORTIONS AND PERCENTAGES 1