Answer:
Get 0 tails (correct answers in the test)
Get 5 tails (correct answers in the test)
Step-by-step explanation:
This is a problem of empirical probability calculation, since the teacher tries to find by means of the experimental method, the number of correct answers that a student could correctly guess in a true / false test with 8 questions.
If the teacher throws the 8 coins and then counts the number of tails, the graph shows the frequency with which 1, 2, 3, 4, 5, 6, 7 and 8 tails are obtained in the 100 attempts.
Therefore, the least probable result was the one that was obtained less frequently in the experiment or, in other words, the one that contains fewer points in the diagram, which in this case are:
Get 0 tails (correct answers in the test)
Get 5 tails (correct answers in the test)
