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歡迎您訪問數學考題練習:某公司有30名員工,將他們的年齡分成3組,在3!

數學考題練習:某公司有30名員工,將他們的年齡分成3組,在3

更新時間:2024-01-12 16:30:18作者:貝語網校

某公司有30名員工,將他們的年齡分成3組,在32~42歲這一組內有18名員工,那么這個小組的頻率為

A.0.1

B.0.5

C.0.6

D.0.8

試題答案

C

試題解析

根據頻率、頻數的關系:頻率=,即可解決.

解答:這個小組的頻率為=0.6.故選C.

點評:本題考查:頻率、頻數的關系頻率=.

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