作业帮What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?这句话什么意思?
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What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?
这句话什么意思?
10 20 30...190 这些数字的平均数是多少
(10+20+30+40.+190)/19