Level:
Project ID:
1003158309
Accepted:
1
Clonable:
0
Easy:
0
Students of a class take a multiple choice test consisting of \( 10 \) tasks. There are \( 5 \) optional answers to each of the tasks, while only one answer is correct. One student, however, did not study for the test at all. Therefore, he circles his answers randomly, without performing any calculations. Find the probability that he will circle at least \( 3 \) correct answers. Round the result to four decimal places.
\( 0{.}3222 \)
\( 0{.}8591 \)
\( 0{.}1409 \)
\( 0{.}6778 \)