Answer:
13 times or 33%
Step-by-step explanation:
The probability is the number of chances divided by the total number. The total number of options is 6 since it is a six sided cube. She could roll a 3 or a 4. These are two options out of total of 6.
2 out of 6 is 2/6 which simplifies to 1/3 =0.33 = 33%
If she rolls 39 times then you can expect, she rolled a 3 or 4 - 0.33(39)= 12.87 which rounded up is 13 times.
