Statistics 28 Frequency distribution 20 frequency distribution 14 Frequency distributions 12 Frequency Distribution 11 Probability 10 frequency distributions 10 psychology 10 probabilities 9 Probabilities 7 Psychology 6 Variation 6 probability 5 Statistical Methods 4 Statistical method 4 sampling 4 Dispersion 3 Disperson 3 Mathematics 3 Normal distribution 3 PROBABILITY 3 Regression analysis 3 Time series 3 Variability 3 dispersion 3 normal distribution 3 regression 3 Biology 2 CORRELATION AND REGRESSION 2 Correlation 2