Question

Suppose that, without even reading the questions, you guess on all four questions of a true-or-false test. Compare the quantity

in Column A with the quantity in Column B. Choose the best answer
Column A
P (exactly one right
answer)
Column B
P(exactly one wrong
answer)
one wrong
The quantity in Column A is greater
The quantity in Column B is greater
The two quantities are equal.
The relationship cannot be determined from the information given
is greater
yudi

Answer 1

Answer: The two quantities are equal.

Explanation:

Given that without even reading the questions, you guess on all four questions of a true-or-false test.

In Column A, Probability of choosing right answer will be

P(exactly one right answer) = 1/2

Number of right answers = 1/2 × 4 = 2

In Column B, Probability of choosing right answer will be

P(exactly one wrong answer) = 1/2

one wrong

Number of wrong answers = 1/2 × 4 = 2

Therefore, we conclude that the two quantities are equal.