Question

How is this solved a history class comprised of 3 female and 10 male students , if the instructor of the class randomly chooses 9 students from class for an oral exam what is probation of 2 female and 7 make students selected

Answer 1

0.306

Explanation:

Using binomial probability,

`\binom{9}{2}(3/13)^2 (10/13)^7 \approx 0.306`