Find the indicated probability. The age distribution of students at a community college is given below. Age (years) Number of students (f) 1109​ A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places.

0.063 is the probability of at least 31 students.

Step-by-step explanation:

Solution:

Given:

The age distribution of students  is given below:

Age (years)Number of students

Under  21                    414

21 - 25                         413

26 - 30                        212

31 - 35                        50

0ver 35                     20

total                         1109

A student from community college is selected at random.

The ratio  of favorable outcomes numbers of that event is the probability of  to the total number of possible outcomes in experiment.

Probability of at least 31 students:

Probability of At least 31 students = 31 or more than 31 students

P( 31 – 35) = n (31 – 35) + n (over 35) / n(T)

= 50 + 20 / 1109

= 70 / 1109

= 0.063

0.063 is the probability of at least 31 students.