Questions: Statistics Understanding the mean graphically: Two bars The graph below shows two black bars. Adjust the light bar so that it has the mean height of the two black bars. Black bars Mean Explanation Check © 2024 McGraw Hill LLC. All Rights Reserved.

Statistics Understanding the mean graphically: Two bars The graph below shows two black bars. Adjust the light bar so that it has the mean height of the two black bars. Black bars Mean Explanation Check © 2024 McGraw Hill LLC. All Rights Reserved.
Transcript text: Statistics Understanding the mean graphically: Two bars The graph below shows two black bars. Adjust the light bar so that it has the mean height of the two black bars. Black bars Mean Explanation Check © 2024 McGraw Hill LLC. All Rights Reserved.
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Solution

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Solution Steps

Step 1: Identify the Heights of the Two Black Bars
  • Observe the graph and note the heights of the two black bars. Let's assume the heights are 2 and 6 units respectively.
Step 2: Calculate the Mean Height
  • Add the heights of the two black bars: \(2 + 6 = 8\).
  • Divide the sum by the number of bars (2) to find the mean: \(\frac{8}{2} = 4\).
Step 3: Adjust the Light Bar to the Mean Height
  • Adjust the height of the light bar to match the calculated mean height, which is 4 units.

Final Answer

  • The light bar should be adjusted to a height of 4 units.
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