Problem 1BSC

Subjective Probability

a. Estimate the probability that on the next test in a randomly selected statistics class, at least one student earns a grade of A.

b. Answer part (a) with the additional knowledge that the selected class is a special section for honors students with very high grade point averages.

Solution 1BSC

(a)

Chances of getting at least one student who earns a grade of A on the next test in a randomly selected statistics class is very high so we can say that the required probability will be around 0.98.

(b)

Now since we have additional information that the selected class is a special section for honors students with very high grade point averages so we can say that the required probability will be very high, around 0.999.