Elementary statistical methods by Walker, Helen,

Elementary Statistical Methods Helen Mary Walker

Elementary Statistical Methods by Gregory Quenell

Fundamentals of Modern Statistical Methods by Rand R. Wilcox, Hardcover

Mathematics Essential for Elementary Statistics by Helen M Walker

Statistical Inference. by Helen M. Walker

Elementary Statistical Methods by William Navidi; Barry Monk

Statistical inference by Helen M. Walker and Joseph Lev 1953 Hardcover