A-Level
EDEXCEL
Mathematics & Further Mathematics
January 2022
QP-202201-Mathematics-US1 · Question 7
Question (excerpt):
26 blank 7. A bag contains n marbles of which 7 are green. From the bag, 3 marbles are selected at random. The random variable X represents the number of green marbles selected. The cumulative …
26 blank 7. A bag contains n marbles of which 7 are green. From the bag, 3 marbles are selected at random. The random variable X represents the number of green marbles selected. The cumulative …
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