TY - BOOK AU - Das, N.G TI - Statistical Methods Combined edition (Volume I & II) SN - 9780070083271 U1 - 519.5 21st ed PY - 2017/// CY - Chennai PB - Mcgraw Hill Education (India) Pvt Ltd KW - Statistical KW - collection of data KW - measures of central tendency KW - theory of probability ER -