With probability (random) sampling techniques, each member of the population has an unequal chance of being selected for the research sample. Frue False

Suppose a math class contains 23 students, 13 females (six of whom speak French) and 10 males (two of whom speak French). Compute the probability that a randomly selected student is female, given that the student speaks French.

A bag contains 3 gold marbles, 7 silver marbles, and 26 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win \( \$ 4 \). If it is silver, you win \( \$ 2 \). If it is black, you lose \( \$ 1 \). What is your expected value if you play this game? \( \$ \) tType your answer as a decimal, round to the nearest 2 decimals because this is money.

Question 15 A box contains 5 red, 14 blue, and 12 green marbles. b. Two marbles are selected at random without replacement. Find the probability that the first is blue and the second is green. *Type your answer as a decimal, round to the nearest 4 decimals. Add your answer Integer, decimal, or E notation allowed

There are 3 cards in a hat; one is a king, one is a queen, and one is an ace. Two cards are to be selected at random with replacement. Using a tree diagram, obtain the sample space for the experiment. Then, find the probability that you choose the same card twice. Round to 4 decimals when necessary.

Integer, decimal, or E notation allowed Question 17 Find the probability that the student was female AND got a "C": *Type your answer as a decimal, round to the nearest 4 decimals. Add your answer Integer, decimal, or Enotation allowed