representative是雅思几分的单词

是雅思6分的单词，例如：

1.The painting is not representative of his work of the period.这幅画不是他在那个时期的代表作。

3.Is a questionnaire answered by 500 people truly representative of the population as a whole 由500人参加的问卷调查能真正代表所有民众吗？