Question

If the martes obtained by a student in fiue subjects are 15, 14, 20, 17 d 25, then the probability of getting marks more than or equal to 20 is​

Answer 1

P(marks ≥ 20) = 0.4

Explanation:

Marks gotten by the 5 students are;

15, 14, 20, 17, 25

Marks more than or equal to 20 are 2 in number namely 20 and 25.

Thus, probability of getting marks more than or equal to 20 is;

P(marks ≥ 20) = 2/5

P(marks ≥ 20) = 0.4