问题


There is a single choice question about high school statistics. Answer the question by replying A, B, C or D.
Question: Given that P(E) = 0.32, P(F) = 0.15, and P(E ∩ F) = 0.048, which of the following is a correct conclusion?
A. The events E and F are both independent and mutually exclusive.
B. The events E and F are neither independent nor mutually exclusive.
C. The events E and F are mutually exclusive but not independent.
D. The events E and F are independent but not mutually exclusive.
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

D. The events E and F are independent but not mutually exclusive.

Explanation:

P(E) = 0.32, P(F) = 0.15, and P(E ∩ F) = 0.048

To determine if the events are independent, we need to check if P(E ∩ F) = P(E) × P(F).

P(E) × P(F) = 0.32 × 0.15 = 0.048

Since P(E ∩ F) = 0.048, which is equal to P(E) × P(F), the events E and F are independent.

To determine if the events are mutually exclusive, we need to check if P(E ∩ F) = 0.

Since P(E ∩ F) = 0.048, which is not equal to 0, the events E and F are not mutually exclusive.

Therefore, the correct conclusion is that the events E and F are independent but not mutually exclusive.
D
deepseekr1

The events E and F are independent if \( P(E \cap F) = P(E) \times P(F) \). Calculating \( 0.32 \times 0.15 = 0.048 \), which matches the given \( P(E \cap F) \), confirming independence. Since \( P(E \cap F) \neq 0 \), they are not mutually exclusive.

**Answer:** D
D
gpto1 D D
GPT-4o B. The events E and F are neither independent nor mutually exclusive.

Explanation: To determine if the events are independent, we check if P(E ∩ F) = P(E) * P(F). Here, P(E) * P(F) = 0.32 * 0.15 = 0.048, which matches P(E ∩ F). Thus, the events E and F are independent.

To determine if the events are mutually exclusive, we check if P(E ∩ F) = 0. Here, P(E ∩ F) = 0.048, which is not 0. Therefore, the events E and F are not mutually exclusive.

Hence, the events E and F are independent but not mutually exclusive, making the correct answer D.
D
llama3.1-70B-Instruct

B
D
llama3.1-405B-Instruct

D. The events E and F are independent but not mutually exclusive.

Explanation:

P(E) = 0.32, P(F) = 0.15, and P(E ∩ F) = 0.048

To determine if the events are independent, we need to check if P(E ∩ F) = P(E) × P(F).

P(E) × P(F) = 0.32 × 0.15 = 0.048

Since P(E ∩ F) = 0.048, which is equal to P(E) × P(F), we can conclude that the events E and F are independent.

To determine if the events are mutually exclusive, we need to check if P(E ∩ F) = 0.

Since P(E ∩ F) = 0.048, which is not equal to 0, we can conclude that the events E and F are not mutually exclusive.

Therefore, the correct answer is D. The events E and F are independent but not mutually exclusive.
D
DeepSeek-Coder-V2 D. The events E and F are independent but not mutually exclusive. D
Qwen2-72B-Instruct B. The events E and F are neither independent nor mutually exclusive. D
baichuan4 To determine if events E and F are independent, we can use the formula:

P(E ∩ F) = P(E) * P(F)

Given:
P(E) = 0.32
P(F) = 0.15
P(E ∩ F) = 0.048

Let's calculate P(E) * P(F):
0.32 * 0.15 = 0.048

Since P(E ∩ F) = P(E) * P(F), we can conclude that events E and F are independent.

Now, let's check if they are mutually exclusive. If two events are mutually exclusive, the probability of their intersection (P(E ∩ F)) should be 0. In this case, P(E ∩ F) = 0.048, which is not 0, so events E and F are not mutually exclusive.

Therefore, the correct answer is:

D. The events E and F are independent but not mutually exclusive.
D
doubao D.

If two events are mutually exclusive, then P(E ∩ F) = 0. But here P(E ∩ F) = 0.048 ≠ 0, so they are not mutually exclusive.

For independence, if events E and F are independent, then P(E ∩ F) = P(E) × P(F). Here, 0.32 × 0.15 = 0.048 which is equal to P(E ∩ F), so they are independent.

So the events E and F are independent but not mutually exclusive.
D
minimax To determine whether the events E and F are independent or mutually exclusive, we can use the definitions and properties of these concepts:

- Two events are independent if the probability of both events occurring together (the intersection) is equal to the product of their individual probabilities. In other words, P(E ∩ F) = P(E) * P(F).
- Two events are mutually exclusive if they cannot occur at the same time, which means that the intersection of the two events is zero (P(E ∩ F) = 0).

Given:
P(E) = 0.32
P(F) = 0.15
P(E ∩ F) = 0.048

Let's check for independence first:
P(E) * P(F) = 0.32 * 0.15 = 0.048

Since P(E ∩ F) = 0.048, which is equal to P(E) * P(F), the events E and F are independent.

Now let's check for mutual exclusivity:
If E and F were mutually exclusive, then P(E ∩ F) would be 0, but we are given that P(E ∩ F) = 0.048, which is not zero. Therefore, E and F are not mutually exclusive.

The correct conclusion is that the events E and F are independent but not mutually exclusive.

Answer: D. The events E and F are independent but not mutually exclusive.
D
kimi D. The events E and F are independent but not mutually exclusive.

To determine if two events are independent, we use the formula for the probability of the intersection of two events:

\[ P(E \cap F) = P(E) \times P(F) \]

Given:
\[ P(E) = 0.32 \]
\[ P(F) = 0.15 \]
\[ P(E \cap F) = 0.048 \]

We can calculate the expected probability of the intersection if E and F were independent:

\[ P(E) \times P(F) = 0.32 \times 0.15 = 0.048 \]

Since the calculated probability matches the given probability of the intersection, E and F are independent.

Two events are mutually exclusive if they cannot happen at the same time. Since \( P(E \cap F) \neq 0 \), the events are not mutually exclusive.

Therefore, the correct answer is D, indicating that E and F are independent but not mutually exclusive.
D
wenxinyiyan D

Explanation:

1. **Mutually Exclusive Events**: Two events are mutually exclusive if they cannot occur at the same time. Mathematically, if P(E ∩ F) = 0, then E and F are mutually exclusive.

In this case, P(E ∩ F) = 0.048 ≠ 0, so E and F are not mutually exclusive.
2. **Independent Events**: Two events are independent if the occurrence of one event does not affect the probability of the occurrence of the other event. Mathematically, if P(E ∩ F) = P(E) × P(F), then E and F are independent.

In this case, P(E) = 0.32, P(F) = 0.15, and P(E ∩ F) = 0.048.

Calculating P(E) × P(F) gives 0.32 × 0.15 = 0.048.

Since P(E ∩ F) = P(E) × P(F) = 0.048, the events E and F are independent.

Conclusion: The events E and F are independent but not mutually exclusive.
D
zhipu To determine the correct conclusion, let's analyze the given probabilities and the definitions of independence and mutual exclusivity:

1. **Mutually Exclusive Events**: Two events E and F are mutually exclusive if they cannot occur at the same time, i.e., \( P(E \cap F) = 0 \).

2. **Independent Events**: Two events E and F are independent if the occurrence of one event does not affect the probability of the other event occurring, i.e., \( P(E \cap F) = P(E) \cdot P(F) \).

Given:
- \( P(E) = 0.32 \)
- \( P(F) = 0.15 \)
- \( P(E \cap F) = 0.048 \)

First, check for mutual exclusivity:
- Since \( P(E \cap F) = 0.048 \neq 0 \), the events E and F are **not mutually exclusive**.

Next, check for independence:
- Calculate \( P(E) \cdot P(F) \):
\[
P(E) \cdot P(F) = 0.32 \times 0.15 = 0.048
\]
- Since \( P(E \cap F) = 0.048 = P(E) \cdot P(F) \), the events E and F are **independent**.

Based on this analysis, the correct conclusion is that the events E and F are independent but not mutually exclusive.

Therefore, the answer is:
**D. The events E and F are independent but not mutually exclusive.**
D
gpto1 D D
deepseekv3 To determine the correct conclusion, let's analyze the given probabilities and the definitions of independent and mutually exclusive events.

1. **Independent Events**: Two events \( E \) and \( F \) are independent if the occurrence of one does not affect the occurrence of the other. Mathematically, this means:
\[
P(E \cap F) = P(E) \times P(F)
\]
Given:
\[
P(E) = 0.32, \quad P(F) = 0.15, \quad P(E \cap F) = 0.048
\]
Let's check if \( E \) and \( F \) are independent:
\[
P(E) \times P(F) = 0.32 \times 0.15 = 0.048
\]
Since \( P(E \cap F) = 0.048 \), the events \( E \) and \( F \) are independent.

2. **Mutually Exclusive Events**: Two events \( E \) and \( F \) are mutually exclusive if they cannot occur at the same time. Mathematically, this means:
\[
P(E \cap F) = 0
\]
Given that \( P(E \cap F) = 0.048 \neq 0 \), the events \( E \) and \( F \) are **not** mutually exclusive.

Based on the above analysis, the events \( E \) and \( F \) are independent but not mutually exclusive.

**Answer:** D
D