Question

A six-sided fair die is rolled 4 times in a row. The probability of getting a 4 only on the last trial is

Answer 1

The probability of getting a 4 only on the last trial is

125/1296

Step-by-step explanation:

For plato users ;)

Answer 2

The probability of getting a 4 only on the last trial is
`= (125)/(1296)`

Step-by-step explanation:

When a die rolled single time, total number of favorable outcome is given as {1,2,3,4,5,6}

when the die is rolled single time Probability of having 4 on die is

`= (1)/(6)`

and if die is roll and Probability of not having 4 is

`=1 - (1)/(6) = (5)/(6)`

Now, when die Rolled 4 times in a row, then probability of having 4 only on last trial is

`= (5)/(6) * (5)/(6) * (5)/(6) * (1)/(6)`

`= (125)/(1296)`