题干

有13位同学参加学校组织的才艺表演比赛,已知他们所得的分数互不相同,共设7个获奖名额,某同学知道自己的比赛分数后,要判断自己能否获奖,在这13名同学成绩的统计量中只需知道一个量,它是____(填众数 或方差 或中位数 或平均数)

上一题 下一题 0.0难度 选择题 更新时间:2019-08-14 10:46:58

答案(点此获取答案解析)

中位数

同类题2

阅读理解

    Apple Seeds

    Circulation(发行量): 1 Year, 9 Issues(—期)

    Cover Price: $44.55

    Price for You: $33.95

    Product Description: Apple Seeds is an award winning magazine filled with stories for kids aged from 7 to 9. The cover is very soft, providing durability(耐用性)that allows each issue to be enjoyed for many years to come. Besides, there is a big surprise for you-it's being sold at a more favorable discount than usual.

    Better Life

    Circulation: 1 Year, 12 Issues

    Cover Price: $44.55

    Price for You: $15.00

    Product Description: Designed for those who have a strong interest in personal lifestyle. Better life is an America's complete home and family service magazine. It offers help with food, recipes, decorating(装潢), building, gardening, family health, money management and education.

    Humor Times

    Circulation: 1 Year, 12 Issues

    Cover Price: $36.00

    Price for You: $11.95

    Product Description: Humor Times is for those who love to laugh! Full of cartoons and humor columns, it shows up in your mailbox once a month and keeps you smiling all year round! In today's world, you need a reason to laugh. So let's find it in Humor Times.

    News China

    Circulation: I Year, 12 Issues

    Cover Price: $47.88

    Price for You: $19.99

    Product Description: News China is the English edition of China Newsweek. The magazine covers the latest Chinese domestic news in politics, society, environment, culture, sports and travels, etc. It is the first comprehensive news magazine for readers interested in China.