Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 07 Dec 2013, 17:19

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A fair dice is thrown ten times one after another. What is

Author Message
TAGS:
Manager
Joined: 28 Feb 2003
Posts: 107
Followers: 1

Kudos [?]: 2 [0], given: 0

A fair dice is thrown ten times one after another. What is [#permalink]  21 May 2003, 17:37
00:00

Difficulty:

5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
A fair dice is thrown ten times one after another. What is the probability of getting an odd number on an even numbered throw and an even number on an odd numbered throw?
Manager
Joined: 28 Feb 2003
Posts: 107
Followers: 1

Kudos [?]: 2 [0], given: 0

i think the problem is worth trying
Intern
Joined: 17 May 2003
Posts: 3
Followers: 0

Kudos [?]: 0 [0], given: 0

don't quite understand the question? can you explain ?
Manager
Joined: 28 Feb 2003
Posts: 107
Followers: 1

Kudos [?]: 2 [0], given: 0

first, third, fifth, seventh & ninth throw.....will give an even number on the dice

second, fourth, sixth, eigth and tenth throw...will give an odd number on the dice
Manager
Joined: 25 Apr 2003
Posts: 229
Followers: 3

Kudos [?]: 26 [0], given: 0

Odd throws - five - each throw probability that even turns up is 1/2.
Even throws - five - similar to above probability that odd turns up on each throw is also 1/2

Hence probability that on Every odd throw , we get even = (1/2)^5
And Probability that on Every even throw , we get odd = (1/2)^5

Probability that both these events happen = (1/2)^5 * (1/2)^5

Manager
Joined: 28 Feb 2003
Posts: 107
Followers: 1

Kudos [?]: 2 [0], given: 0

Similar topics Replies Last post
Similar
Topics:
If a fair dice is rolled three times, what is the 12 02 Sep 2004, 17:11
What is P of two fair dice so that sum of both dice thrown 6 01 Sep 2006, 15:20
A fair coin is thrown 5 times. What is the probability of 5 03 Oct 2006, 08:41
9 4 dices are thrown at the same time. What is the probability 21 27 Dec 2009, 22:21
5 If two fair six-sided dice are thrown, what is the probabili 5 06 Mar 2013, 18:21
Display posts from previous: Sort by