Cambridge Secondary (7-9). Stage 9. Science. Learner's Book - Unit 7: Genes and inheritance - Question 51

Arun picked 20 bean pods, all from the same species, and counted the beans in each: 7, 3, 8, 6, 3, 4, 7, 5, 5, 8, 6, 4, 6, 7, 5, 5, 6, 5, 4, 8. Calculate the mean number of beans in a pod. Show how you worked out your answer.