students taking a doctoral class consist of six teachers and eight school administrators. the instructor knows from previous experience that two-thirds of the teachers and on half of the school administrators prefer plain cheese pizza. what is the probability that a randomly chosen student from the class will be a teacher or will prefer plain cheese pizza?

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Which graph represents the linear function below? y-3=1/2(x+2)

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1