Final answer:
The percentage of the market above 75, rounded to the nearest percent, is 20%.
Step-by-step explanation:
The student is asking what percentage of the market is above 75, rounding to the nearest percent. To find this, we need to look at the cumulative relative frequency. In this case, the third quartile is the same as the 75th percentile. We can see from the table that the cumulative relative frequency at 75 is 0.80, meaning that 80% of the data is below 75. Therefore, the percentage of the market above 75 would be 100% - 80% = 20%.