Suppose that an experimenter offers you two choices: (A) two coin flips, both with a fair coin and(B) two coin flips, one with probability 1/4 of heads and the other probability 3/4 of heads (bothindependent). You will be given $1 for each Head. LetXdenote the total winnings from yourexperiment.(a) What kind of random variable is (A)

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Need solving this 2nd limit problem.

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average