A jar contained 18 red marbles, 14 green marbles, and 20 blue marbles. A marble was selected at random, the color was recorded,
and the marble was placed back in the jar. The table shows the results after 60 trials. Outcome
Number of times outcome occurred
Red 22
Green 18
Blue 20
What was the relative frequency of selecting a blue marble?
You could also say. 13 x --- = --- 1 7 Multiply across. 1x=13×7 1x =91 Divide both sides by one. x=91. 91 cups of yoygurt are needed to make 7 Smoothies. Or you could do it the easy way. whatever makes you happy. :)
