Sadiq rolls a regular six-sided number cube 10 times and gets an even number 7 times. How does his experimental probability compare to the theoretical probability?(1 point)

Responses

The experimental probability was greater than the theoretical probability.
The experimental probability was greater than the theoretical probability.

The experimental and theoretical probability are equal.
The experimental and theoretical probability are equal.

The theoretical probability is greater than the experimental probability.
The theoretical probability is greater than the experimental probability.

The theoretical and experimental probabilities are opposites.

1 answer

To compare the experimental probability to the theoretical probability, we first need to determine the theoretical probability of rolling an even number on a six-sided number cube.

The even numbers on a six-sided die are 2, 4, and 6. This gives us 3 even numbers out of a total of 6 possible outcomes:

\[ \text{Theoretical probability of rolling an even number} = \frac{\text{Number of favorable outcomes}}{\text{Total outcomes}} = \frac{3}{6} = \frac{1}{2} = 0.5. \]

Now, Sadiq rolls the die 10 times and gets an even number 7 times. To find the experimental probability, we use the formula:

\[ \text{Experimental probability} = \frac{\text{Number of times the event occurs}}{\text{Total trials}} = \frac{7}{10} = 0.7. \]

Now we compare the two probabilities:

  • Theoretical probability: 0.5
  • Experimental probability: 0.7

Since 0.7 (experimental probability) is greater than 0.5 (theoretical probability), the correct response is:

The experimental probability was greater than the theoretical probability.