在第十次出现第三次头像,
即,前九次出现2次头像,且第十次出现头像
P=C(9 2)*(1/2)^9 *1/2=9/256.
头硬币的概率问题A coin is tossed 10 times.What is the probability th
5个回答
相关问题
-
统计学概率If three far dice are rolled,what is the probability th
-
c++ 硬币正反面问题Write a program that simulates coin tossing.For e
-
Conversation 1. What is the probable relationship between th
-
概率论题意不清If two fair dice are tossed six times,what is the pro
-
—"______ ?" —"March 12th." [ ] A. What time is it B. Whe
-
What is the probability that a bridge hand contains at least
-
sat2 A two-sided coin is flipped four times.Given that the c
-
what is the time 和what time is it的time属于什么句子成分
-
英语翻译What is Digital Signage?Digital Signage is a phrase coin
-
听力 1. What is the probable relationship between the speakers