1MA0 Foundation November 2013 Paper 2 Q16

EdexcelFoundationOld spec4 marksBasic Probability

16

likely  impossible  certain  evens  unlikely
(a) Use a word from the box which best describes the probability of each of the following events.
(i) When you throw an ordinary coin you get a tail.
(ii) When you throw an ordinary dice you get a number less than 7
(2)

Bill has some counters in a bag.
3 of the counters are red.
7 of the counters are blue.
The rest of the counters are yellow.

Bill takes at random a counter from the bag.

The probability that he takes a yellow counter is \(\dfrac{2}{7}\)

(b) How many yellow counters are in the bag before Bill takes a counter? (2)
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