On a science quiz, David got 45 out of 70 items correct. What is the empirical probability of his incorrect responses.
To find the empirical probability of David's incorrect responses, we need to calculate the proportion of incorrect responses out of the total number of responses.
First, let's find the total number of incorrect responses:
Total number of responses = 70
Number of correct responses = 45
Number of incorrect responses = 70 - 45 = 25
Now, we can calculate the empirical probability of David's incorrect responses:
Empirical probability = Number of incorrect responses / Total number of responses
Empirical probability = 25 / 70
Empirical probability ≈ 0.3571
Therefore, the empirical probability of David's incorrect responses is approximately 0.3571 or 35.71%.