Using it's concept, the probabilities are given as follows:
19. A. 1/3.
20. F. 1/6.
What is a probability?
A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem, there are 1 + 1 + 3 + 4 + 3 = 12 papers. 4 have a score of 6, hence, in item 19, the probability is:
p = 4/12 = 1/3.
Which means that option A is correct.
2 papers have a score greater than 12, hence the probability in item 20 is given by:
p = 2/12 = 1/6.
Which means that option F is correct.
More can be learned about probabilities at https://brainly.com/question/14398287
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