The answer depends on the set of cards from which the picking is done. Unfortunately, you have provided absolutely no information on that.
it is 1/6
Theoretical
The probability of selecting a red marble is 3/9
The probability of selecting 1 female at random is 4/8 There are now 7 students, 3 of which are female so the probability of selecting another female is 3/7 The probability two randomly selected students are female is (4/8)x(3/7)= 3/14
It depends on the context which is not specified. If picking a topic for a history project on the monarchy of some country it would be 1! If it concerns selecting one card, at random, from a standard deck of playing cards, the answer is 8/52 = 2/13.
It is 2/13.
The probability is 0.
Theoretical
Theoretical
The probability of selecting a red marble is 3/9
The probability of selecting 1 female at random is 4/8 There are now 7 students, 3 of which are female so the probability of selecting another female is 3/7 The probability two randomly selected students are female is (4/8)x(3/7)= 3/14
It depends on the context which is not specified. If picking a topic for a history project on the monarchy of some country it would be 1! If it concerns selecting one card, at random, from a standard deck of playing cards, the answer is 8/52 = 2/13.
It is 2/13.
If you draw 49 cards the answer is 0. If you draw only one card at random, the answer is 48/52 = 12/13.
8=D
Random sampling is a method of selecting a sample where each member of the population has the same probability of being included in the sample. An equivalent statement is that each subset of the population, of the given size, has the same probability of being selected as any other subset of that size.
0.553
A simple random sample is a method of selecting a sample where the probability of any particular member of the population being part of the sample is the same for all members of the population.