of the last 10 trains to arrive at Oakdale station, 8 were on time. what is the experimental probability that the next train to arrive will be on time? Write your answer as a decimal rounded to the nearest tenth.

Im pretty sure it would be 6 purple rectangles.

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post