There are 13 employees in your department, 5 of whom are Python programmers and

Question

There are 13 employees in your department, 5 of whom are Python programmers and 8 of whom are Java programmers 4. You will randomly select 4 employees to participate in security certification training. Calculate the probability that an equal number of each type of employee will be selected for the security certification training i. i. Calculate the probability that no Java programmers are selected to participate in the training. ii. You need to select 2 out of the 13 employees to help you prepare the team for its training. Calculate the probability that Ken is selected to administer a pre-test and Bo is selected to provide the refresher materials.

Explanation / Answer

i) 13 Employees,5 Python, 8 Java Programmers.

Here out of 13, 4 are selected is the total probability (or) actual probability.

i.e 13C4.

5C2 X 8C2 are selected by equal number =140

Answer= 140/715=0.195.

ii) 13C5 = 1287.

iii) 13C2 = 78.

Ken, Bo are delected so total 11 members.

Answer= 55/78= 0.7.

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