Practice Test 11

Students rolled two dice 80 times and recorded the sum. They found that sums of 7 appeared 18 times, while sums of 2 appeared only 1 time. If they develop probability models based on these frequencies, which statement correctly compares their observed model to the theoretical model?

A weather station tracks rainy days over 200 days and finds it rained on 45 days. However, they notice that in the first 100 days, it rained 15 times, while in the second 100 days, it rained 30 times. How should they develop their probability model for rain, and what does this pattern indicate?