Below are the results of tossing a number cube seven times. Find the experimental probability of tossing an even number.
6 4 3 2 5 3 3
A. 3/7
B. 2/7
C. 1/2
D. 4/7
There are four even numbers (2, 4, 6, and 8) on a number cube and a total of six possible outcomes. Therefore, the theoretical probability of rolling an even number is 4/6 or 2/3.
To find the experimental probability, we count the number of times an even number was rolled in the seven trials: twice (2 and 4). So the experimental probability is 2/7.
The answer is choice B, 2/7.