Answer :
Let's carefully analyze and determine the outcomes for each event and then calculate the respective probabilities.
### Step-by-Step Solution:
#### Outcomes:
First, let's list the eight possible outcomes when a number cube is rolled three times:
1. OOE - Odd, Odd, Even
2. EOE - Even, Odd, Even
3. OEO - Odd, Even, Odd
4. EOO - Even, Odd, Odd
5. EEO - Even, Even, Odd
6. OOO - Odd, Odd, Odd
7. EEE - Even, Even, Even
8. OEE - Odd, Even, Even
Each of these outcomes has an equal probability of occurring since each roll is independent and has the same probability.
### Event Analysis:
#### Event A: An even number on the second roll
For this event, we list outcomes where the second roll is an even number:
- EOE
- OEO
- EEO
- OEE
Probability of Event A:
[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
For this event, we list outcomes where there are at least two even numbers:
- EOE (Even, Odd, Even)
- EEO (Even, Even, Odd)
- EEE (Even, Even, Even)
- OEE (Odd, Even, Even)
Probability of Event B:
[tex]\[ P(B) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{4}{8} = 0.5 \][/tex]
### Event Distribution Table:
[tex]\[ \begin{array}{|l|c|c|c|c|c|c|c|c|c|} \hline & \text{OOE} & \text{EOE} & \text{OEO} & \text{EOO} & \text{EEO} & \text{OOO} & \text{EEE} & \text{OEE} & \text{Probability} \\ \hline \text{Event A: An even number on the second roll} & & \checkmark & \checkmark & & \checkmark & & & \checkmark & 0.5 \\ \hline \text{Event B: Two or more even numbers} & & \checkmark & & & \checkmark & & \checkmark & \checkmark & 0.5 \\ \hline \end{array} \][/tex]
In summary:
- Event A (An even number on the second roll) involves the outcomes: EOE, OEO, EEO, OEE
- Event B (Two or more even numbers) involves the outcomes: EOE, EEO, EEE, OEE
- Both events have a probability of [tex]\(0.5\)[/tex].
### Step-by-Step Solution:
#### Outcomes:
First, let's list the eight possible outcomes when a number cube is rolled three times:
1. OOE - Odd, Odd, Even
2. EOE - Even, Odd, Even
3. OEO - Odd, Even, Odd
4. EOO - Even, Odd, Odd
5. EEO - Even, Even, Odd
6. OOO - Odd, Odd, Odd
7. EEE - Even, Even, Even
8. OEE - Odd, Even, Even
Each of these outcomes has an equal probability of occurring since each roll is independent and has the same probability.
### Event Analysis:
#### Event A: An even number on the second roll
For this event, we list outcomes where the second roll is an even number:
- EOE
- OEO
- EEO
- OEE
Probability of Event A:
[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
For this event, we list outcomes where there are at least two even numbers:
- EOE (Even, Odd, Even)
- EEO (Even, Even, Odd)
- EEE (Even, Even, Even)
- OEE (Odd, Even, Even)
Probability of Event B:
[tex]\[ P(B) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{4}{8} = 0.5 \][/tex]
### Event Distribution Table:
[tex]\[ \begin{array}{|l|c|c|c|c|c|c|c|c|c|} \hline & \text{OOE} & \text{EOE} & \text{OEO} & \text{EOO} & \text{EEO} & \text{OOO} & \text{EEE} & \text{OEE} & \text{Probability} \\ \hline \text{Event A: An even number on the second roll} & & \checkmark & \checkmark & & \checkmark & & & \checkmark & 0.5 \\ \hline \text{Event B: Two or more even numbers} & & \checkmark & & & \checkmark & & \checkmark & \checkmark & 0.5 \\ \hline \end{array} \][/tex]
In summary:
- Event A (An even number on the second roll) involves the outcomes: EOE, OEO, EEO, OEE
- Event B (Two or more even numbers) involves the outcomes: EOE, EEO, EEE, OEE
- Both events have a probability of [tex]\(0.5\)[/tex].