Question

Let x be the ages of students in a class. Given the frequency distribution F(x) above, determine the following probabilities:

(a) P(x=19)= ______
(b) P(x=21)= ______
(c) P(x≥20)= ______

Answer 1

To determine the probabilities, refer to the given frequency distribution F(x) and calculate the probabilities using the formula provided.

Step-by-step explanation:

In order to determine the probabilities, we need to refer to the given frequency distribution F(x).

a) To find P(x=19), we look for the frequency value corresponding to x=19 in the frequency distribution. Let's say the frequency is f. P(x=19) is given by f divided by the total number of students.

b) To find P(x=21), we follow the same process as in (a) but for x=21.

c) To find P(x≥20), we add up the frequencies for x≥20 and divide it by the total number of students.