If A and B are independent events which rule do we use Write

If A and B are independent events which rule do we use? (Write a or b as your answer.) P(A or B) = P(A) + P(B) P(A and B) = P(A)-P(B) If the goal is to make an inference about a population from a sample, and each member of the population has an equally likely chance of being chosen for the sample, we say the sample has been chosen.

Solution

The condition of independence explains that if two events A and B are independent if and only if the propabilidad of the joint execution of them is:
The probability that both events occur is equal to the multiplication of occurrence of the event A to event B.

So we chose the letter B

if the goal is to make an inference about a population from a sample, and each member of the population has an equally likely chance of being chosen for the sample, we say the sample has been randomly chosen