For a biased die,the probabilities for different faces to turn up are
$Face$ $1$ $2$ $3$ $4$ $5$ $6$
$P(F)$ $0.2$ $0.22$ $0.11$ $0.25$ $0.05$ $0.17$

The die is tossed and you are told that either face $4$ or face $5$ has turned up. The probability that it is face $4$ is

  • A
    $\frac{1}{6}$
  • B
    $\frac{1}{4}$
  • C
    $\frac{5}{6}$
  • D
    None of these

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Similar Questions

$A$ cubical die with faces marked $1, 2, 3, ..., 6$ is tossed such that the probability of throwing the number $t$ is proportional to $t^2$. The probability that the number $5$ has appeared,given that the number turned up is not even,is:

Let $B(\alpha, \beta, \gamma)$ represent that a bag $B$ contains $\alpha$ red balls, $\beta$ green balls, and $\gamma$ blue balls. Given $B_1(2, 3, 2)$, $B_2(3, 2, 2)$, $B_3(2, 2, 3)$. $A$ die is rolled. If the die shows $2, 3,$ or $5$, a ball is drawn from bag $B_1$. If the die shows $4$ or $6$, a ball is drawn from bag $B_2$. If the die shows $1$, a ball is drawn from bag $B_3$. Find the probability of drawing a green ball.

Bag $P$ contains $3$ white, $2$ red, $5$ blue balls and bag $Q$ contains $2$ white, $3$ red, $5$ blue balls. $A$ ball is chosen at random from $P$ and is placed in $Q$. If a ball is chosen from bag $Q$ at random, then the probability that it is a red ball is

If $E_1$ and $E_2$ are two events of a random experiment such that $P(E_1) = \frac{1}{8}$,$P(E_1 \mid E_2) = \frac{1}{3}$,and $P(E_2 \mid E_1) = \frac{1}{4}$,then match the items of List-$I$ with the items of List-$II$.
List-$I$List-$II$
$A. P(E_1 \cup E_2)$$I. \frac{3}{29}$
$B. P(E_2)$$II. \frac{26}{29}$
$C. P(E_1 \mid \bar{E}_2)$$III. \frac{3}{16}$
$D. P(\bar{E}_1 \mid \bar{E}_2)$$IV. \frac{3}{32}$

Find $P(E | F)$ for a coin tossed three times,where $E: \text{head on third toss}$,$F: \text{heads on first two tosses}$.

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