Which pair of events are NOT overlapping when rolling a single six-sided die?

اگر احتمال رویداد A برابر با 0.3 و احتمال رویداد B برابر با 0.4 باشد، احتمال هم‌زمانی این دو رویداد را محاسبه کنید.

5. An urn contains nine balls of which three are red, four are blue and two are green. Three balls are drawn at random without replacement from the urn. The probability that the three balls have different colours is - (A) \( \frac{1}{3} \) (B) \( \frac{2}{7} \) (C) \( \frac{1}{21} \) (D) \( \frac{2}{23} \)

3. Odds 8 to 5 against a person who is 40 years old living till he is 70 and 4 to 3 against another person now 50 till he will be living 80 . Probability that one of them will be alive next 30 years- \( \begin{array}{ll}\text { (A) } 59 / 9 D & \text { (B) } 44 / 91 \\ \text { (C) } 51 / 91 & \text { (D) } 32 / 91\end{array} \)

Какова вероятность выпадения орла, если монета подброшена дважды?

If you draw a card from a deck and do not replace it, what type of events does this represent when drawing a second card?