Experimental probability is the chance an event has to occur. It is derived from the number of times an event occurs to the total number of trials. You can use the following formula to calculate it. P = (o/t) * 100%, where o is the number of times the event occurred, and t is the total amount of trials ran. In this case, P = (66/101) * 100, which evaluates to P = 65.3% (after rounding) Answer: 65.3%
the expression is 3(15+7). An word problem could be there are 15 apples and 7 bananas. Someone needs to buy 3 times the amount of those. This is represented by that expression.