0580 P41 - Nov 2017 - Q9 - 12 marks
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An 80-bead bag has red and green beads; P(green)=0.35.
(a(i)) Find the number of red beads. [2]
(a(ii)) Marcos draws with replacement 240 times. Find the expected green count. [1]
Another bag has 2 blue,3 yellow,4 white marbles. Huma draws three times with replacement.
(b(i)) Find P(all yellow). [2]
(b(ii)) Find P(all different colours). [3]
(c) A bag has 2 green and 3 pink counters. Teresa draws three without replacement. Find P(more pink than green). [4]