1.选择题- (共5题)
1..
-John will be removed from his position if he doesn’t come to work on time.
-Surely,but John isn’t so foolish________ not to realize that.
-John will be removed from his position if he doesn’t come to work on time.
-Surely,but John isn’t so foolish________ not to realize that.
2..
-John will be removed from his position if he doesn’t come to work on time.
-Surely,but John isn’t so foolish________ not to realize that.
-John will be removed from his position if he doesn’t come to work on time.
-Surely,but John isn’t so foolish________ not to realize that.
3..
-John will be removed from his position if he doesn’t come to work on time.
-Surely,but John isn’t so foolish________ not to realize that.
-John will be removed from his position if he doesn’t come to work on time.
-Surely,but John isn’t so foolish________ not to realize that.
4.
2016年中考前,张老师为了解全市初三男生体育考试项目的选择情况(每人限选一项),在全市范围内随机调查了部分初三男生,将调查结果分成五类:A.推实心球(2kg);B.立定跳远;C.半场运球;D.跳绳;E.其他.并将调查结果绘制成以下两幅不完整的统计图,请你根据统计图解答下列问题:
5.
2016年中考前,张老师为了解全市初三男生体育考试项目的选择情况(每人限选一项),在全市范围内随机调查了部分初三男生,将调查结果分成五类:A.推实心球(2kg);B.立定跳远;C.半场运球;D.跳绳;E.其他.并将调查结果绘制成以下两幅不完整的统计图,请你根据统计图解答下列问题:
2.解答题- (共3题)
6.
某校高二年级某班的数学课外活动小组有6名男生,4名女生,从中选出4人参加数学竞赛考试,用X表示其中男生的人数.
(1)请列出X的分布列;
(2)根据你所列的分布列求选出的4人中至少有3名男生的概率.
(1)请列出X的分布列;
(2)根据你所列的分布列求选出的4人中至少有3名男生的概率.
7.
甲有一个箱子,里面放有x个红球,y个白球(x,y≥0,且x+y=4);乙有一个箱子,里面放有2个红球,1个白球,1个黄球.现在甲从箱子任取2个球,乙从箱子里在取1个球,若取出的3个球颜色全不相同,则甲获胜.
(1)试问甲如何安排箱子里两种颜色的个数,才能使自己获胜的概率最大?
(2)在(1)的条件下,求取出的3个球中红球个数的数学期望.
(1)试问甲如何安排箱子里两种颜色的个数,才能使自己获胜的概率最大?
(2)在(1)的条件下,求取出的3个球中红球个数的数学期望.
试卷分析
-
【1】题量占比
选择题:(5道)
解答题:(3道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:0
9星难题:3