If someone can explain how to do this problem so I can learn and understand.

you have a sample of 50 people. Based on the histogram, find the proportion of weight loss values in the sample that are less than 10 pounds. Write your answer as a decimal, and do not round your answer. 0.26,0.22,0.10,0.10 I know to add these up and than I am stuck.

Thank you

Weight losses not given.