Question
Random Sampling Quick Check
3 of 53 of 5 Items
Question
Avery randomly selects 50 colored pencils from a basket and finds that 2 are not sharpened. If the basket contains 300 colored pencils, how many would you expect to be unsharpened?(1 point)
Responses
20
20
120
120
12
12
2
Answers
GPT 3.5
The correct answer is 12.
To find the expected number of unsharpened colored pencils, you would set up a proportion:
(2 unsharpened colored pencils / 50 total colored pencils) = (x unsharpened colored pencils / 300 total colored pencils)
Solving for x, you would get x = (2/50) * 300 = 12.
Therefore, you would expect 12 colored pencils to be unsharpened.
To find the expected number of unsharpened colored pencils, you would set up a proportion:
(2 unsharpened colored pencils / 50 total colored pencils) = (x unsharpened colored pencils / 300 total colored pencils)
Solving for x, you would get x = (2/50) * 300 = 12.
Therefore, you would expect 12 colored pencils to be unsharpened.