本课配套习题挑战模式1/5
单选题
难度系数:
1.已知一组从小到大的数据:0,4,x,10的中位数是5,则x=( )
A: 5 |
B: 6 |
C: 7 |
D: 8 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWBtuaVsOS4quaVsOaNru+8jOS4reS9jeaVsOaYr+acgOS4remXtOS4pOS4quaVsOeahOW5s+Wdh+aVsA==
- 答案:Qg==
PGRpdj7op6PvvJrkuIDnu4Tku47lsI/liLDlpKfnmoTmlbDmja7vvJow77yMNO+8jHjvvIwxMOeahOS4reS9jeaVsOaYrzXvvIw8YnI+5YiZ77yINCt477yJw7cyPTXvvIwgeD0277ybPC9kaXY+
本课配套习题挑战模式2/5
单选题
难度系数:
2.
在一次环保知识问答中,一组学生成绩统计如表:则该组学生成绩的中位数是( )
A: 70 |
B: 75 |
C: 80 |
D: 85 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5pWw5o2u5YWx5pyJNTDkuKrvvIzmjInku47lsI/liLDlpKfmjpLliJflkI7nrKwyNe+8jOesrDI25Lik5Liq5pWw55qE5bmz5Z2H5pWw5L2c5Li65Lit5L2N5pWwPC9wPg==
- 答案:Qw==
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
本课配套习题挑战模式3/5
单选题
难度系数:
3.下列说法错误的是( )
A: 一组数据不一定总有众数 |
B: 众数是出现频数最多的数据值 |
C: 当有多个数据出现的频数并列最多时,则这多个数据都是众数 |
D: 众数不一定是整数 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOS8l+aVsOaMh+S4gOe7hOaVsOaNruS4reWHuueOsOasoeaVsOacgOWkmueahOaVsOaNrg==
- 提示2:IOS8l+aVsOS5n+WPr+S7peaYr+Wwj+aVsOaIluWIhuaVsA==
- 提示3:IOWmguaenOS4gOe7hOaVsOaNruS4re+8jOavj+S4quaVsOaNruWHuueOsOeahOasoeaVsOmDveebuOWQjO+8jOWImeivpee7hOaVsOaNruS4reWwsemDveaYr+S8l+aVsC4=
- 答案:QQ==
PGRpdj7op6PvvJrkvJfmlbDmjIfkuIDnu4TmlbDmja7kuK3lh7rnjrDmrKHmlbDmnIDlpJrnmoTmlbDmja7vvIzkvJfmlbDkuZ/lj6/ku6XmmK/lsI/mlbDmiJbliIbmlbDvvJvlpoLmnpzkuIDnu4TmlbDmja7kuK3vvIzmr4/kuKrmlbDmja7lh7rnjrDnmoTmrKHmlbDpg73nm7jlkIzvvIzliJnor6Xnu4TmlbDmja7kuK3lsLHpg73mmK/kvJfmlbA8L2Rpdj4=
本课配套习题挑战模式4/5
单选题
难度系数:
4.
如图是以频数分布折线图,则30名学生脉搏跳动次数的中位数为( )
A: 10 |
B: 80 |
C: 6 |
D: 75 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+6KeC5a+f5oqY57q/57uf6K6h5Zu+77yM5qC55o2u5pWw5o2u55qE5Liq5pWw5o6S5bqP5ZCO5Y2z5Y+v56Gu5a6a5Lit5L2N5pWwPC9wPg==
- 提示2:PHA+5rOo5oSP56CU56m255qE5pWw5o2u5piv6Lez5Yqo5qyh5pWw77yM6ICM5LiN5piv5Lq65pWwPC9wPg==
- 答案:Qg==
PGRpdj7op6PvvJrmnIkzMOS4quaVsO+8jOWPluesrDE144CBMTbkvY3nmoTlubPlnYfmlbDjgILnlLHlm77nn6XvvIw0KzY9MTAmbHQ7MTXvvIw0KzYrMTE9MjEmZ3Q7MTbvvIzmiYDku6XnrKwxNeOAgTE25L2N6YO95pivODDvvIzliJnkuK3kvY3mlbDkuLo8aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNUQvckJBQ0ZGTU1WSUxDVEhhcEFBQUNKajV1N1A4MjA1LnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wMC81RC9yQkFDRkZNTVZJTENUSGFwQUFBQ0pqNXU3UDgyMDUucG5nIiBoZWlnaHQ9IjQyIiB3aWR0aD0iMTAxIj48L2Rpdj4=
本课配套习题挑战模式5/5
单选题
难度系数:
5.一组数据由5个整数组成,中位数是4,惟一的众数是6,那么这5个整数的和最大只可能是( )
A: 19 |
B: 20 |
C: 21 |
D: 22 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS4reS9jeaVsOWSjOS8l+aVsOeahOWumuS5ieaOqOeQhg==
- 答案:Qw==
PGRpdj7op6PvvJrlj6/ku6XmjqjnkIblh7rvvIzov5k15Liq5pW05pWw5Lit5pyJ5Lik5LiqNu+8jOS4gOS4qjTvvIzlj6blpJbkuKTkuKrmlbTmlbDogq/lrprmr5Q06KaB5bCP77yM5LiU5LiN55u4562J77yM5omA5Lul5Y+q5pyJ5YmN5Lik5Liq5pWw5Y+WMuWSjDPml7bvvIzov5k15Liq5pW05pWw55qE5ZKM5pyA5aSn77yM5Li6MjEuIDwvZGl2Pg==