a dice is thrown 5 times , then the probability that an even number will come up exactly 3 times is
Dear Student,
As the dice is thrown 5 times and each throw can result in 6 outcomes.
The sample space will be n(S)=65.
Now let n(A) be the event of getting an even number in a throw of dice, so 3 out of 6 possible outcome.
we need 3 number of favourable outcomes in 5 throws=33
But the even number can occur in any three of the 5 throws of dice. Hence we need to select 3 out of 5 throws of dice
Probability p(A)=
Regards,
As the dice is thrown 5 times and each throw can result in 6 outcomes.
The sample space will be n(S)=65.
Now let n(A) be the event of getting an even number in a throw of dice, so 3 out of 6 possible outcome.
we need 3 number of favourable outcomes in 5 throws=33
But the even number can occur in any three of the 5 throws of dice. Hence we need to select 3 out of 5 throws of dice
Probability p(A)=
Regards,