Question

Assume that a class has the following scores on a quiz: (18, 20, 13, 18, 19, 17, 16, 15, 18, 20, 15, 14, 16). What is the mode for these scores?

A. 5
B. 18
C. 17
D. 16

Answer 1

The mode is the number that appears most frequently in a set. Upon counting, 18 appears 3 times in the given scores, more than any other number, making it the mode of the set.

Step-by-step explanation:

To find the mode for the class quiz scores - (18, 20, 13, 18, 19, 17, 16, 15, 18, 20, 15, 14, 16), we need to identify the number that appears most frequently in the list. By listing the numbers in order, we can more easily see which number or numbers occur the most.

• 13 (1 time)
• 14 (1 time)
• 15 (2 times)
• 16 (2 times)
• 17 (1 time)
• 18 (3 times)
• 19 (1 time)
• 20 (2 times)

From the above frequencies, we can see that the number 18 occurs most frequently, making it the mode. The correct answer to the question "Assume that a class has the following scores on a quiz: (18, 20, 13, 18, 19, 17, 16, 15, 18, 20, 15, 14, 16). What is the mode for these scores?" is B. 18.