作业帮一道英文统计学题目.求大神指导算Z的数值 成功率
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/19 10:24:46
一道英文统计学题目.求大神指导算Z的数值 成功率
Question 3
Because of a severe drought in New South Wales, Farmer Giles needs to move his
cows to another property in Victoria that has not been affected by the drought. It
is known that a group of cows takes, on average, 16 days to make the trip
between the two farms. The time taken to make the trip is normally distributed
with a standard deviation of 2 days.
Farmer Giles has 100 cows in his herd. He can only manage to transport 20 cows
at a time. If it takes him exactly one day to return home after taking each group
of cows, how likely is it that he can transport his herd within 90 days?
Question 3
Because of a severe drought in New South Wales, Farmer Giles needs to move his
cows to another property in Victoria that has not been affected by the drought. It
is known that a group of cows takes, on average, 16 days to make the trip
between the two farms. The time taken to make the trip is normally distributed
with a standard deviation of 2 days.
Farmer Giles has 100 cows in his herd. He can only manage to transport 20 cows
at a time. If it takes him exactly one day to return home after taking each group
of cows, how likely is it that he can transport his herd within 90 days?
看不懂就是看不懂,百度你怎么这么多事,老子不会还不行啊,为了这点经验你用得着让我打这么多字吗,几天没用知道怎么有了最低字数限制了还?百度你妈的事也太多了吧.
再问： 。。我做出来了。。。哥们 给你个满意答案- -
再问： 。。我做出来了。。。哥们 给你个满意答案- -