Answer: A.15
Step-by-step explanation:
We know that the mode of a data set is a data value that occurs most of the time than the rest other values.
Given : A group of college students was surveyed to see how old they were when they had their first job.
The results were as follows:
:15% were 14 years old;
50% were 15 years old;
20% were 16 years old;
15% were 17 years old.
We can that the highest percentage (i.e. 50% ) is of 15 years old students.
It means that the mode of the data set is 15 .
Hence, the correct answer is option (A).
