div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=basic-statistical-toolshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Basic statistical tools loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentssitereader033viewer202206151955c2b80fbb61ebe3508b4580html5thumbnails1jpg width=140 height=200 divpBASIC STATISTICAL TOOLSp pIN EDUCATIONAL PLANNINGpdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=basic-statistical-toolshtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Basic statistical tools loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentssitereader033viewer202206151955c2b80fbb61ebe3508b4580html5thumbnails2jpg width=140 height=200 divpMAIN PURPOSE OF EDUCATIONAL STATISTICSpdiv