The sixth-graders at Ethan's school got to choose between a field trip to a museum and a field trip to a factory. 38 sixth-graders picked the museum. If there are 76 sixth-graders in all at Ethan's school, what percentage of the sixth-graders picked the museum?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.