Question

8. A set of 20 cards is numbered 1, 2, 3, . 20.
Suppose you pick a card at random without
looking. Find the probability of each of the
following events. Write your answer as a fraction
in simplest form.
(a) P(1)
(b) P(not a factor of 10)​

Answer 1

Answer:

a)1/20

b)1,3,4,6,7,8,9,11,12,13,14,15,16,17,18,19,20

18/20=9/10

Answer 2

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