asked 61.4k views
2 votes
There 20 colored pencils in a box:4 red, 5 green, 10blue , and 1 black. You pick a pencil without looking. What is the sum of the probability of picking a red pencil and the probability of picking a black pencil

asked
User Staskrak
by
8.1k points

1 Answer

0 votes
5/20. Simplify 1/4. You just add the number of the desired colors, over the total number.
answered
User Patrizio
by
8.3k points
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