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The problem asks to compute the overall average rating of a movie based on weighted ratings from three reviewers. The reviewers have different ratings and weights, which are based on the number of followers each reviewer has.

Here’s the data given:
- **Reviewer A**: Rating = 4.5, Followers = 200
- **Reviewer B**: Rating = 4.0, Followers = 150
- **Reviewer C**: Rating = 3.5, Followers = 100

To find the overall average rating, we use the weighted average formula:

\[
\text{Weighted Average} = \frac{(R_A \times W_A) + (R_B \times W_B) + (R_C \times W_C)}{W_A + W_B + W_C}
\]

Where:
- \( R_A, R_B, R_C \) are the ratings of each reviewer,
- \( W_A, W_B, W_C \) are the weights (number of followers) for each reviewer.

Now, I'll calculate the overall weighted average.The overall weighted average rating of the movie, considering the different numbers of followers (weights) for each reviewer, is approximately **4.11**.

Would you like more details on the calculation or have any other questions?

Here are 5 related questions to expand on this concept:
1. What would happen to the average rating if Reviewer A's rating was lowered to 4.0?
2. How would the average change if Reviewer C had more followers than Reviewer A?
3. Can you explain how weighted averages differ from simple averages?
4. How is weighting used in other real-world scenarios like surveys or sports rankings?
5. What would the new average be if we added a fourth reviewer with a rating of 5.0 and 300 followers?

**Tip:** Always ensure that your data (like weights) accurately reflects the importance or influence of each factor when using weighted averages.

A movie website wants to compute the overall average rating of a movie, considering different reviewers who have rated the movie, with each reviewer having different numbers of followers (weight). Reviewer A: Average rating = 4.5 (Followers = 200) Reviewer B: Average rating = 4.0 (Followers = 150) Reviewer C: Average rating = 3.5 (Followers = 100)

Calculate the weighted average rating of a movie based on the ratings from three reviewers and their follower counts. This problem uses the weighted average formula and is ideal for students in Grades 10-12.

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