Question

During an experiment, Juan rolled a six-sided number cube 18 times. The number two occurred four times. Juan claimed the experimental probability of rolling a two was approximately 1/9. Why is Juan’s experimental probability incorrect?

Answer 1

Answer:

Juan's claim is incorrect. The correct experimental probablilty is StartFraction 2 over 9 EndFraction.

Step-by-step explanation:

took the test.

Answer 2

Answer:

$\frac{2}{9}$

Step-by-step explanation:

Given :

Juan rolled a six-sided number cube 18 times.

The number two occurred four times.

To Find: Juan claimed the experimental probability of rolling a two was approximately 1/9. Why is Juan’s experimental probability incorrect?

Solution:

Total events = number of times cube rolled = 18

Favorable events = The number two occurred four times.  = 4

So, Experimental probability = $\frac{\text{Favorable events}}{\text{Total events}}$

                                               = $\frac{4}{18}$

                                               = $\frac{2}{9}$

Thus the experimental probability of rolling a two was  $\frac{2}{9}$

So, Juan’s experimental probability was incorrect.