Orange sulfur butterflies (Colias eurytheme) typically live up to 4 weeks as adults and females lay hundreds of eggs. Imagine a mutation that causes females to produce eggs more quickly. However, producing so many eggs requires a lot of resources and the mutation also decreases lifespan. A researcher measured the number of eggs produced each week by 20 females, 10 with the original trait and 10 with the mutated trait. On the right is a table showing the average number of eggs produced each week for each group. 13. Which of the following is the best prediction given this data?

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