hey how du work out th standard deviation?like if uv drawn a cumulative frequency diagram or curve or histogram or woteva u call it...
pls wb!has2b dun 4 January wen one goes back 2 SCHOOL!!!
|How often do you go out?||11-02-2016|
|How proud of your uni are you? Take our survey for the chance to win a holiday!||09-02-2016|