A number cube is rolled 360 times, and the results are recorded as follows: 61 ones, 26 twos, 36 threes, 76 fours, 73 fives, and 88 sixes. What is the experimental probability of rolling a 2 or a 3?
A:0.07
B:0.17
C:0.26
D:0.83
According to your experimental results, the 2 or 3 came up 62 times out of 360
Experimental prob = 62/360 = .172..
The theoretical prob = 2/6 = 1/3 = .333
(1/3) * 360 = _______ probability of rolling a 2 or 3
To find the experimental probability of rolling a 2 or a 3, we need to calculate the total number of times a 2 or a 3 was rolled, and then divide it by the total number of rolls.
First, let's determine the number of times a 2 or a 3 was rolled. From the given results, we know that there were 26 twos and 36 threes rolled, which adds up to a total of 26 + 36 = 62 times.
Next, we need to calculate the total number of rolls. In this case, the number cube was rolled 360 times, so the total number of rolls is 360.
Now, we can find the experimental probability by dividing the number of times a 2 or a 3 was rolled by the total number of rolls:
Experimental probability = (number of times a 2 or a 3 was rolled) / (total number of rolls)
= 62 / 360
≈ 0.17
Therefore, the experimental probability of rolling a 2 or a 3 is approximately 0.17.
The correct answer choice is B: 0.17.