Answer :
Let's analyze the events and the outcomes step by step to fill in the table and calculate the probabilities for the events.
### Outcomes
Here are the 8 possible outcomes when rolling a number cube three times:
- OOE
- EOE
- OEO
- EOO
- EEO
- OOO
- EEE
- OEE
### Event A: An even number on the second roll
We need to check which outcomes have an even number (E) in the second position. Let's identify them:
- OOE: Second roll is O (odd), so it is not included.
- EOE: Second roll is O (odd), so it is not included.
- OEO: Second roll is E (even), so it is included.
- EOO: Second roll is O (odd), so it is not included.
- EEO: Second roll is E (even), so it is included.
- OOO: Second roll is O (odd), so it is not included.
- EEE: Second roll is E (even), so it is included.
- OEE: Second roll is E (even), so it is included.
The outcomes for Event A are:
OEO, EEO, EEE, OEE
Now we count the number of outcomes that satisfy this event. There are 4 such outcomes out of a total of 8. Therefore, the probability [tex]\( P(A) \)[/tex] is:
[tex]\[ P(A) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{4}{8} = 0.5 \][/tex]
### Event B: Two or more even numbers
We need to check which outcomes have two or more even numbers (E). Let's identify them:
- OOE: One even number, so it is not included.
- EOE: One even number, so it is not included.
- OEO: Two even numbers, so it is included.
- EOO: One even number, so it is not included.
- EEO: Two even numbers, so it is included.
- OOO: Zero even numbers, so it is not included.
- EEE: Three even numbers, so it is included.
- OEE: Two even numbers, so it is included.
The outcomes for Event B are:
OEO, EEO, EEE, OEE
Now we count the number of outcomes that satisfy this event. There are 4 such outcomes out of a total of 8. Therefore, the probability [tex]\( P(B) \)[/tex] is:
[tex]\[ P(B) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{4}{8} = 0.5 \][/tex]
### Summary in Table Form
Let's fill in the table with the identified outcomes and probabilities.
[tex]\[ \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|} \hline \multicolumn{2}{|l|}{} & \multicolumn{8}{|c|}{Outcomes} \\ \hline & OOE & EOE & OEO & EOO & EEO & OOO & EEE & OEE & Prob \\ \hline \begin{tabular}{l} Event A: An even number on the \\ second roll \end{tabular} & & & \checkmark & & \checkmark & & \checkmark & \checkmark & 0.5 \\ \hline \begin{tabular}{l} Event B: Two or more even numbers \end{tabular} & & & \checkmark & & \checkmark & & \checkmark & \checkmark & 0.5 \\ \hline \end{tabular} \][/tex]
This table summarizes the favorable outcomes for each event and provides the calculated probabilities.
### Outcomes
Here are the 8 possible outcomes when rolling a number cube three times:
- OOE
- EOE
- OEO
- EOO
- EEO
- OOO
- EEE
- OEE
### Event A: An even number on the second roll
We need to check which outcomes have an even number (E) in the second position. Let's identify them:
- OOE: Second roll is O (odd), so it is not included.
- EOE: Second roll is O (odd), so it is not included.
- OEO: Second roll is E (even), so it is included.
- EOO: Second roll is O (odd), so it is not included.
- EEO: Second roll is E (even), so it is included.
- OOO: Second roll is O (odd), so it is not included.
- EEE: Second roll is E (even), so it is included.
- OEE: Second roll is E (even), so it is included.
The outcomes for Event A are:
OEO, EEO, EEE, OEE
Now we count the number of outcomes that satisfy this event. There are 4 such outcomes out of a total of 8. Therefore, the probability [tex]\( P(A) \)[/tex] is:
[tex]\[ P(A) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{4}{8} = 0.5 \][/tex]
### Event B: Two or more even numbers
We need to check which outcomes have two or more even numbers (E). Let's identify them:
- OOE: One even number, so it is not included.
- EOE: One even number, so it is not included.
- OEO: Two even numbers, so it is included.
- EOO: One even number, so it is not included.
- EEO: Two even numbers, so it is included.
- OOO: Zero even numbers, so it is not included.
- EEE: Three even numbers, so it is included.
- OEE: Two even numbers, so it is included.
The outcomes for Event B are:
OEO, EEO, EEE, OEE
Now we count the number of outcomes that satisfy this event. There are 4 such outcomes out of a total of 8. Therefore, the probability [tex]\( P(B) \)[/tex] is:
[tex]\[ P(B) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{4}{8} = 0.5 \][/tex]
### Summary in Table Form
Let's fill in the table with the identified outcomes and probabilities.
[tex]\[ \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|} \hline \multicolumn{2}{|l|}{} & \multicolumn{8}{|c|}{Outcomes} \\ \hline & OOE & EOE & OEO & EOO & EEO & OOO & EEE & OEE & Prob \\ \hline \begin{tabular}{l} Event A: An even number on the \\ second roll \end{tabular} & & & \checkmark & & \checkmark & & \checkmark & \checkmark & 0.5 \\ \hline \begin{tabular}{l} Event B: Two or more even numbers \end{tabular} & & & \checkmark & & \checkmark & & \checkmark & \checkmark & 0.5 \\ \hline \end{tabular} \][/tex]
This table summarizes the favorable outcomes for each event and provides the calculated probabilities.