what is the answer of this probality question?
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/17 01:47:42
what is the answer of this probality question?
1.Suppose that visitors to a web page can click one of two buttons:“buy” or “cancel”.Visitors make decisions independently and for each visitor:
P[“buy”] = 0.3
P[“cancel”] = 0.7
(a) If 6 people visit the web page,what is the probability that exactly two of them buy?
(b) If 6 people visit the web page,what is the probability that at least two of them buy?
(c) If 6 people visit the web page,what is the probability that only the last person buys?
1.Suppose that visitors to a web page can click one of two buttons:“buy” or “cancel”.Visitors make decisions independently and for each visitor:
P[“buy”] = 0.3
P[“cancel”] = 0.7
(a) If 6 people visit the web page,what is the probability that exactly two of them buy?
(b) If 6 people visit the web page,what is the probability that at least two of them buy?
(c) If 6 people visit the web page,what is the probability that only the last person buys?
a) 0.3*0.3*0.7*0.7*0.7*0.7*6*5/2=0.324135
b)1-0.7^6-6*0.3*0.7^5=0.579825
C) 0.3
b)1-0.7^6-6*0.3*0.7^5=0.579825
C) 0.3
what is the answer of this probality question?
What is the sky This question is very difficult to answer ,i
the answer of this question和the answer to this question哪个正确?
What does shaking head main?the answer to this question is n
question,the,is,answer,to,this,the(连词成句)
Do you know the answer of this question?(改错~)
who can work out the answer of this question改错
Find the answer ( ) this question.
What's meaning of "answer to the question"
The child is not ( ) to answer this question in English.
do you know the answer .no,this question is
what 'is a hat?Please answer the question in English.