For \( 6-10 \), use the information given to calculate \( P(A \) or \( B)=P(A)+P(B)-P(A \) and \( B) \). \( \begin{array}{l}\text { 6. } P(A)=.5, P(B)=.3, P(A \text { and } B)=.06 \\ \text { 7. } P(A)=.4, P(B)=.1, P(A \text { and } B)=.05 \\ \text { 8. } P(A)=.65, P(B)=.22, P(A \text { and } B)=.08 \\ \text { 9. } P(A)=\frac{4}{52}, P(B)=\frac{13}{52}, P(A \text { and } B)=\frac{1}{52} \\ \text { 10. } P(A)=\frac{3}{8}, P(B)=\frac{5}{8}, P(A \text { and } B)=0\end{array} \)

9.1 Given: \( P(A)=0,45 ; P(B)=y \) and \( P(A \) or \( B)=0,74 \). Determine the value(s) of \( y \) : 9.1.1 If \( A \) and \( B \) are mutually exclusive events. 9.1.2 If \( A \) and \( B \) are independent events.

The probability that it will be sunny tomorrow is \( \frac{2}{9} \). If it is sunny, the probability that Siya plays rugby is \( \frac{8}{15} \). If it is not sunny, the probability that Siya plays rugby is \( \frac{4}{15} \) 9.2.1 Represent the above information on the tree diagram and indicate all the possible outcomes.

A six-sided die is rolled. Let A be the event "getting an odd prime number". (1) Write down the set \( \mathrm{A}, \mathrm{n}(\mathrm{A}) \) and \( \mathrm{P}(\mathrm{A}) \). (2) Draw a Venn diagram showing the actual outcomes. (3) Draw a Venn diagram showing the number of outcomes. (4) Draw a Venn diagram showing the probabilities.

A three-digit number is to be formed from the digits 1,6 and 8 . What is the probability that the number will:

Se tiene una urna con 7 Pelotas de color negra 8 de color blanco y a de color gris. ¿ cual es la pro bilidad de elegir al azar una pebta de color negro y una de color gris?