A box contains 5 chocolate chip cookies, 4 sugar and 6 oatmeal raisin. What is the probability of picking a chocolate chip cookie? 1/9
1/3
2/21
2/3

1/3

There are a total amount of 15 items in the box. 5 of them is a chocolate chip cookie. It gives u 5/15. You then need to simplify which will give u 1/3

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.