Question

In a certain class of​ students, there are 1111 boys from​ Wilmette, 44 girls from​ Kenilworth, 99 girls from​ Wilmette, 77 boys from​ Glencoe, 33 boys from Kenilworth and 77 girls from Glencoe. If the teacher calls upon a student to answer a​ question, what is the probability that the student will be from​ Kenilworth? Round your answer to three decimal places.

Answer 1

Answer: 0.175

Step-by-step explanation:

Probability is particular about a certain outcome of an event relative to the total possible outcome in the event.

Mathematically, Probability = favourable outcome/possible outcome.

In this case, favourable outcome = number of students from kenilworth 44 + 33 = 77

Possible outcome = total number of students = 111 + 44 + 99 + 77 + 33 + 77 = 441

Hence, probability of choosing a student from kenilworth = 77/441 = 0.175 (3d.p)