Select all the correct tables. This table gives information on types of rooms occupied at a hotel in a day.

King Bed Queen Bed
Mountain View 25 18
Ocean View 12 20

Identify the tables that represent the relative frequencies of this data by rows or by columns. Round your answers to the nearest hundredth.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?