Akademiese prestasie van huiskomiteelede van dameskoshuise is nie na wense nie aangesien hulle te veel tyd aan koshuisverpligtinge bestee. Uit al die dameskoshuise van die universiteit word 96 senior damestudente in ‘n ondersoek na die aangeleentheid betrek. Die akademiese prestasie (goed, gemiddeld of swak) van dames wat op ‘n huiskomitee dien (ja) en dames wat nie op ‘n huiskomitee dien nie (nee) is opgesom in die volgende gebeurlikheidstabel: / Academic achievements of house committee members of women’s residences are unsatisfactory because they devote too much time to residence duties. From all the women’s residences at the university, 96 senior female students were involved in an investigation regarding this matter. The academic achievement (good, average or poor) of women who served on house committees (yes) and those who did not (no) are summarised in the following contingency table:

Watter persentasie van die dames dien op ‘n huiskomitee en presteer goed? / What percentage of women serve on a house committee and whose performance is good?

Beskou die volgende frekwensieverdeling van waardes uit ‘n steekproef: / Consider the following frequency distribution of sample values:

Die koördinate van die eerste en laaste punte van ‘n frekwensie veelhoek vir hierdie datastel is: / The coordinates of the first and last points of a frequency polygon for this data set are: 

Veronderstel die volgende data moet in ‘n sektordiagram voorgestel word: / Suppose the following data have be represented in a pie chart:

Die hoek (in grade) wat gebruik moet word om die tweede kategorie voor te stel is: / The angle (in degrees) to be used in representing the second category is: