For a class experiment, hilda places different colored marbles in a bag. she pulls a marble at random from the bag, records its color, and then puts the marble back in the bag. she repeats this process 25 times. the overall results are shown in the table.

result: blue red yellow orange
frequency: 6 4 8 7

what is the relative frequency that hilda pulled a red marble?

enter your answer in the box.