Conditional Probability and Independence
The probability that a randomly selected student uses a guessing strategy is . Among students who score below 60, the probability of using a guessing strategy is . Are the events “using a guessing strategy” and “scoring below 60” independent?
A
The events are complementary, not independent.
B
No, because independence requires and here .
C
They would be independent if , but that is not given.
D
Yes, because any deviation is due to random chance.
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | halllais304 | 1 | 1 | 0m 56s | 44 |
| #2 | jonesg | 1 | 2 | 4m 03s | -153 |
| #3 | abygail.gonzalez69 | 1 | 2 | 7m 55s | -385 |
Items per page:
10
1 – 3 of 3