SAT Question 80f1f3a9: Distributions, Center & Spread answer and explanation with Desmos solution

Choice B is correct. It's given that a data set consists of $173$ colors and the bar graph shows the number of times each color appears in the data set. Therefore, for each color specified at the bottom of the bar, the frequency corresponds to the number of times that color appears in the data set. The color that appears $70$ times in the data set has a frequency of $70$ on the bar graph. Since the bar with a frequency of $70$ corresponds to green, green is the color that appears $70$ times.