本课配套习题挑战模式1/5
单选题
难度系数:
1.一组数据6,-3,0,1,6的中位数是( )
A: 0 |
B: 1 |
C: 2 |
D: 6 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5Lit5L2N5pWw55qE5a6a5LmJ5YWI5oqK6L+Z57uE5pWw5o2u5LuO5bCP5Yiw5aSn5o6S5YiX77yM5YaN5om+5Ye65pyA5Lit6Ze055qE5pWw5Y2z5Y+v5b6X5Ye6562U5qGI
- 答案:Qg==
6Kej77ya5oqK6L+Z57uE5pWw5o2u5LuO5bCP5Yiw5aSn5o6S5YiX5Li677yaLTPvvIww77yMMe+8jDbvvIw277yM5pyA5Lit6Ze055qE5pWw5pivMe+8jOWImeS4reS9jeaVsOaYrzHvvI48YnI+5pWF6YCJQu+8jg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.某班组织了一次读书活动,统计了10名同学在一周内的读书时间,他们一周内的读书时间累计如表,则这10名同学一周内累计读书时间的中位数是( )
一周内累计的读书时间(小时) | 5 | 8 | 10 | 14 |
人数(个) | 1 | 4 | 3 | 2 |
A: 7 |
B: 8 |
C: 9 |
D: 10 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5Lit5L2N5pWw55qE5a6a5LmJ5YWI5oqK6L+Z57uE5pWw5o2u5LuO5bCP5Yiw5aSn5o6S5YiX77yM5YaN5om+5Ye65pyA5Lit6Ze055qE5pWw5Y2z5Y+v5b6X5Ye6562U5qGI
- 答案:Qw==
6Kej77ya4oi15YWx5pyJMTDlkI3lkIzlrabvvIw8YnI+4oi056ysNeWQjeWSjOesrDblkI3lkIzlrabnmoTor7vkuabml7bpl7TnmoTlubPlnYfmlbDkuLrkuK3kvY3mlbDvvIw8YnI+5YiZ5Lit5L2N5pWw5Li677ya77yIOCsxMO+8icO3Mj05PGJyPuaVhemAiUPvvI4=
本课配套习题挑战模式3/5
单选题
难度系数:
3.一组数据3、5、8、3、4的众数与中位数分别是( )
A: 3,8 |
B: 3,3 |
C: 3,4 |
D: 4,3 |
一次做对,真牛!
+5奖励规则>
- 提示1:5LyX5pWw5piv5LiA57uE5pWw5o2u5Lit5Ye6546w5qyh5pWw5pyA5aSa55qE5pWw5o2u77yM5rOo5oSP5LyX5pWw5Y+v5Lul5LiN5q2i5LiA5Liq77yb5om+5Lit5L2N5pWw6KaB5oqK5pWw5o2u5oyJ5LuO5bCP5Yiw5aSn55qE6aG65bqP5o6S5YiX77yM5L2N5LqO5pyA5Lit6Ze055qE5LiA5Liq5pWw77yI5oiW5Lik5Liq5pWw55qE5bmz5Z2H5pWw77yJ5Li65Lit5L2N5pWw77yO
- 答案:Qw==
6Kej77ya5oqK6L+Z57uE5pWw5o2u5LuO5bCP5Yiw5aSn5o6S5YiX77yaM+OAgTPjgIE044CBNeOAgTjvvIw8YnI+M+WHuueOsOS6hjLmrKHvvIzlh7rnjrDnmoTmrKHmlbDmnIDlpJrvvIzliJnkvJfmlbDmmK8z77yOPGJyPuWkhOS6juS4remXtOS9jee9rueahOmCo+S4quaVsOaYrzTvvIznlLHkuK3kvY3mlbDnmoTlrprkuYnlj6/nn6XvvIzov5nnu4TmlbDmja7nmoTkuK3kvY3mlbDmmK8077ybPGJyPuaVhemAiUPvvI4=
本课配套习题挑战模式4/5
单选题
难度系数:
4.某校九年级(1)班全体学生2015年初中毕业体育考试的成绩统计如下表:
根据上表中的信息判断,下列结论中错误的是( )
成绩(分) | 35 | 39 | 42 | 44 | 45 | 48 | 50 |
人数(人) | 2 | 5 | 6 | 6 | 8 | 7 | 6 |
A: 该班一共有40名同学 |
B: 该班学生这次考试成绩的众数是45分 |
C: 该班学生这次考试成绩的中位数是45分 |
D: 该班学生这次考试成绩的平均数是45分 |
一次做对,真牛!
+5奖励规则>
- 提示1:57uT5ZCI6KGo5qC85qC55o2u5LyX5pWw44CB5bmz5Z2H5pWw44CB5Lit5L2N5pWw55qE5qaC5b+15YiG5p6Q
- 答案:RA==
6Kej77ya6K+l54+t5Lq65pWw5Li677yaMis1KzYrNis4KzcrNj00MO+8jDxicj7lvpc0NeWIhueahOS6uuaVsOacgOWkmu+8jOS8l+aVsOS4ujQ177yMPGJyPuesrDIw5ZKMMjHlkI3lkIzlrabnmoTmiJDnu6nnmoTlubPlnYflgLzkuLrkuK3kvY3mlbDvvIzkuK3kvY3mlbDkuLrvvJrvvIg0NSs0Ne+8icO3Mj00NTxicj7lubPlnYfmlbDkuLrvvJrvvIgzNcOXMiszOcOXNSs0MsOXNis0NMOXNis0NcOXOCs0OMOXNys1MMOXNu+8icO3NDA9NDQuNDI1PGJyPuaVhemUmeivr+eahOS4ukTvvI48YnI+5pWF6YCJRO+8jg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.下列说法错误的是( )
A: “伊利”纯牛奶消费者服务热线是4008169999,该十个数的中位数为7 |
B: 服装店老板最关心的是卖出服装的众数 |
C: 要了解全市初三近4万名学生2015年中考数学成绩情况,适宜采用全面调查 |
D: 条形统计图能够显示每组中的具体数据,易于比较数据之间的差别 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5Lit5L2N5pWw44CB5LyX5pWw44CB5YWo6Z2i6LCD5p+l5ZKM5p2h5b2i57uf6K6h5Zu+55qE5qaC5b+16Kej562U
- 答案:Qw==
6Kej77yaQeOAgTQwMDgxNjk5OTnnmoTkuK3kvY3mlbDmmK8377yM5q2j56Gu77ybPGJyPkLjgIHmnI3oo4XlupfogIHmnb/mnIDlhbPlv4PnmoTmmK/ljZblh7rmnI3oo4XnmoTkvJfmlbDvvIzmraPnoa7vvJs8YnI+Q+OAgeimgeS6huino+WFqOW4guWIneS4iei/kTTkuIflkI3lrabnlJ8yMDE15bm05Lit6ICD5pWw5a2m5oiQ57up5oOF5Ya177yM6YCC5a6c6YeH55So5oq95qC36LCD5p+l77yM6ZSZ6K+v77ybPGJyPkTjgIHmnaHlvaLnu5/orqHlm77og73lpJ/mmL7npLrmr4/nu4TkuK3nmoTlhbfkvZPmlbDmja7vvIzmmJPkuo7mr5TovoPmlbDmja7kuYvpl7TnmoTlt67liKvvvIzmraPnoa7vvJs8YnI+5pWF6YCJQ++8jg==