Sally finds that the experimental probability of her putting a ball into a hole is 15%. out of 20 putts, about how many could she predict she would make?

Given the experimental probability of  putting a ball into a hole is 15%.

Experimental Probability is  probability based on an experiment written as a ratio comparing the number of times the event occurred to the number of trial .It can also be written as a percentage.

Experimental probability is given as 15%  that is out of 100 trials the number of times the ball was put in the hole is 15.

The question is asking us to find the number of times the ball will be put in the hole if number of butts is 20.

Number of times the ball will be put in the hole for 20 trials = 15% of 20= 0.15 x 20= 3 .

She can predict to put the ball 3 times in the hole if number of trials is 20.