If you roll a fair-sided die twice, what is the probability of getting

Question

If you roll a fair-sided die twice, what is the probability of getting a double?

A. 1/3
B. 1/6
C. 1/12
D. 1/24
E. 1/36

chetan2u · Answer

ways you can get double - 6...as each dice showing any number from 1 to 6...
total ways =  6*6 = 36. .
 P = \frac{6}{36} = \frac{1}{6} 
B

Divyadisha · Answer

Total number of events= 6*6

Total events of getting same pair= 6

Probability= 6/6*6= 1/6

Another method is:-

Probability of getting any number on 1st dice is 1 and getting the same number of second dice is 1/6 
So, probability of getting pair is 1*1/6= 1/6

B is the answer

HKD1710 · Answer

if we get the same number on both the rolls then we get a double.

probability of getting a number is 1/6. BUT on the second roll probability of getting the same number is 1.

hence probability of getting a double is 1*1/6. Answer is B.

JeffTargetTestPrep · Answer

There are a total of 6 x 6 = 36 possible outcomes when a fair die is rolled twice. Of the 36 possible outcomes, there are 6 doubles: 1-1, 2-2, 3-3, 4-4, 5-5, and 6-6. Thus, the probability of getting a double is 6/36 = 1/6.

Answer: B

MathRevolution · Answer

Total spaces: 6 * 6 = 36

Desired doubles = 6

Probability =  \frac{6}{36}=\frac{1}{6}

Answer B

v12345 · Answer

Total cases = 6*6 = 36
Favorable outcomes = (1,1) , (2,2) , (3,3) , (4,4) , (5,5) , (6,6) = 6
Probability of getting a double = 6/36 = 1/6

Hence, the correct OA is (B).

BrushMyQuant · Answer

Given that A dice is rolled twice and We need to find what is the probability of getting a double

As we are rolling two dice => Number of cases =  6^2  = 36

Getting a double means that both outcomes are same and this happens 6 times
(1,1), (2,2) , (3,3), (4,4), (5,5), (6,6)

=>  Probability of getting a double  =  \frac{6}{36}  =  \frac{1}{6}

So,  Answer will be B 
Hope it helps!

Playlist on Solved Problems on Probability  here

Watch the following video to MASTER Dice Rolling Probability Problems

https://www.youtube.com/watch?v=5PVZYQXet18

If you roll a fair-sided die twice, what is the probability of getting

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If you roll a fair-sided die twice, what is the probability of getting

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