Please help on probability question exam tomorrow
Favorites|Homepage
Subscriptions | sitemap
HOME > > Please help on probability question exam tomorrow

Please help on probability question exam tomorrow

[From: ] [author: ] [Date: 12-06-18] [Hit: ]
the paper was not a p and was not returned, raising to the probability of getting a p to 2/6, which is 1/3. A complete third of the papers have a p on them.......
the letter happens are written on identical pieces of paper and placed in an envelope. Each situation below is a separate, new scenario. They do bot relate to each other.

A single piece of paper is removed, observed, and then replaced. A second piece of paper is removed and observed. What is the probability that at least one piece of paper has an P on it?

A single piece of paper is removed. IT is not an P, this paper is not replaced into the envelope. A second piece of paper is removed. What is the probability that paper is an P?

can you please explain your reasoning, using high-school methods.
Thank You All

-
You have to figure the probability of each letter being drawn.

h = 1/7
a = 1/7
p = 2/7
e = 1/7
n = 1/7
s = 1/7
======
P = 1

The chances of getting a p the first time is 2/7 and the probability of getting a p the second time is 2/7 as well because the original piece of paper was replaced.

4/14 = 2/7

In the second scenario, the paper was not a p and was not returned, raising to the probability of getting a p to 2/6, which is 1/3. A complete third of the papers have a p on them.




ANSWER

a) 2/7
b) 1/3
1
keywords: exam,tomorrow,on,help,probability,Please,question,Please help on probability question exam tomorrow
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .