(a(i))[3]
Use the grid to draw a histogram that shows this information.
(a(ii))[3]
Calculate an estimated mean time.
(b(i))[1]
Calculate the probability that the two beads are both red.
(b(ii))[2]
Calculate the probability that the two beads are not the same colour.
(b(iii))[1]
What value does $R$ have?
(b(iv))[2]
Of the red beads, half have a yellow spot. Calculate the probability that neither of the two chosen beads has a yellow spot.