近年来,共享单车已经悄然进入了广大市民的日常生活,并慢慢改变

近年来,共享单车已经悄然进入了广大市民的日常生活,并慢慢改变了人们的出行方式.为了更好地服务民众,某共享单车公司在其官方APP中设置了用户评价反馈系统,以了解用户对车辆状况和优惠活动的评价,现从评价系统中选出200条较为详细的评价信息进行统计,车辆状况和优惠活动评价的2×2列联表如下:

1)能否在犯错误的概率不超过0.001的前提下认为优惠活动好评与车辆状况好评之间有关系?

2)为了回馈用户,公司通过APP向用户随机派送每张面额为0元,1元,2元的三种骑行券.用户每次使用APP扫码用车后,都可获得一张骑行券,用户骑行一次获得1元券,获得2元券的概率分别是,且各次获取骑行券的结果相互独立.若某用户一天使用了两次该公司的共享单车,记该用户当天获得的骑行券面额之和为X,求随机变量X的分布列和数学期望.

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