Below is the list of colors nominated as the favorite colors by students of class I. Determine the color which has frequency 9. red, blue, red, yellow, green, yellow, green, yellow, yellow, red, green, red, blue, red, yellow, red, blue, yellow, red, blue, blue, yellow, yellow, green, green

Correct Answer: yellow
Frequency gives the number of times that an entry occurs. The frequency of red is 7, frequency of blue is 5, frequency of yellow is 9 and green is 5.