If a random variable $\displaystyle X$ assumes the values $\displaystyle x_1, x_2, x_3, x_4$ with corresponding probabilities, $\displaystyle P_1, P_2, P_3, P_4$ then the expected value of $\displaystyle X$ is

According to bayee's theorem, $\displaystyle P(E_i / A) = \frac{P(E_i)P(A / E_i)}{\sum_{j=1}^{n} P(E_j)P(A / E_j)}$ here

When $\displaystyle 2$ - dice are thrown simultaneously then the probability of getting at least one $\displaystyle 5$ is

A log contains $\displaystyle 15$ one rupee coins, $\displaystyle 25$ two rupees coins and $\displaystyle 10$ five rupee coins if a coin is selected at random than probability for not selecting a one rupee coin is:

What is the probability of occurring $\displaystyle 4$ or more than $\displaystyle 4$ accidents.No. of acc. | Frequency0 | 361 | 272 | 233 | 244 | 245 | 276 | 187 | 9

When two coins are tossed simultaneously the probability of getting at least one tail?

Two broad divisions of probability are