【单选题】【消耗次数:1】
均数和标准差可全面描述( )资料的特征
所有分布形式
负偏态分布
正偏态分布
正态分布和近似正态分布
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随机题目
【单选题】 It is not a matter of right or wrong, instead it ( )down to a matter of preference.
①  ends
②  results
③  goes
④  comes
【单选题】 She?continued?to( )?her?innocence.
①  assertable
②  assertible
③  asserted
④  assert
【单选题】 His early retirement left him in a ( ).
①  empty
②  vacancy
③  void
④  avoid
【单选题】 Chick peas have a ( ), delicious, and nutty flavour
①  distinction
②  distinctness
③  distinctive
④  distinctively
【单选题】 Their relationship was so ( ) that their life-long work together had to stop.
①  firm
②  frayed
③  friendly
④  fraternal
【单选题】 He was under pressure to resign and was about to be ( ).
①  sidelined
②  sidelines
③  sidelining
④  sideline
【单选题】 The new technology has been ( ) in the industrial production.
①  utilized
②  possessed
③  elevated
④  focused
【单选题】 Not only does Tom attend class regularly, but he also ()in extracurricular activities frequently.
①  participates
②  participate
③  involve
④  involved
【单选题】 It ( ) that the kids had spent the whole day playing games.
①  turned up
②  turned out
③  turned off
④  turned on
【单选题】 The tunnel is one of the biggest engineering projects ever ( ).
①  took
②  taken
③  undertaken
④  undertook