STATISTICS Lecture Notes - Standard Deviation, Probability Distribution
Document Summary
Measures of dispersion variance, standard deviation and coefficient of variation. The frequency distributions of seed yield of 50 seasamum plants are given below. Seed yield in gms (x) f fx fx2. Consider the measurement on yield and plant height of a paddy variety. The mean and standard deviation for yield are 50 kg and 10 kg respectively. The mean and standard deviation for plant height are 55 am and 5 cm respectively. Here the measurements for yield and plant height are in different units. Hence the variabilities can be compared only by using coefficient of variation. The yield is subject to more variation than the plant height. Learning exercise: from the data given below, find which series is more consistent. 16: the yield of a crop sorghum from 31experimental plots are given below. 1: the following table gives the protein intake of 400 families. No. of families unit per day in grams.
