Question

the midpoints a, b, and c are marked on the histogram. match them to the indicated scores. which scores, if any, would be considered unusual?

the point a corresponds with z = -2.14

the point b corresponds with z =

Explanation:

Identify the given values and points

Using the Z-Score Calculation knowledge point

• Point A is located at score \(48\).
• Point B is located at score \(63\).
• Point C is located at score \(73\).
• The three given z-scores to match are: \(z = 0\), \(z = 1.43\), and \(z = -2.14\).

Match points to z-scores

Using the Z-Score Interpretation knowledge point

• Point A is the lowest score (\(48\)), which must correspond to the negative z-score: \(z = -2.14\).
• Point B is the middle score (\(63\)), which is near the center of the distribution, corresponding to \(z = 0\).
• Point C is the highest score (\(73\)), which must correspond to the positive z-score: \(z = 1.43\).

Determine the value for Point B

Using the Z-Score Interpretation knowledge point

• Point B corresponds to the center of the distribution.
• Therefore, the z-score for Point B is \(0\).

Answer:

The point B corresponds with z = <blank>0</blank>