单选题假如学生考试成绩以“优”.“良”.“及格”和“不及格”来记录,为了说明全班同学考试成绩的水平高低,其集中趋势的测度()A可采用算术平均数B可以采用众数或中位数C只能采用众数D只能采用四分位数
单选题
假如学生考试成绩以“优”.“良”.“及格”和“不及格”来记录,为了说明全班同学考试成绩的水平高低,其集中趋势的测度()
A
可采用算术平均数
B
可以采用众数或中位数
C
只能采用众数
D
只能采用四分位数
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