83,89,81,55,62,70,78,94,84,97,86,100,66,75。平均数是()

日期:2022-01-28 03:44:01 人气:1

83,89,81,55,62,70,78,94,84,97,86,100,66,75。平均数是()

83,89,81,55,62,70,78,94,84,97,86,100,66,75
之和为1120
平均数为1120/14=80
    A+
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