Bernie and Sarah go bowling together. The table shows their scores for the past eight weeks.

Bowling Scores:
• Bernie: 90, 110, 115, 120, 118, 130, 124, 125
• Sarah: 100, 120, 110, 105, 95, 125, 170, 155Choose all the true statements about the scores.
A. Sarah has the same median score as Bernie.
B. Bernie has the same range of scores as Sarah.
C. Sarah has a greater median score than Bernie.
D. Bernie has a greater median score than Sarah.
E. Sarah has a greater range of scores than Bernie.

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1 answer

To evaluate the true statements about the bowling scores of Bernie and Sarah, we first need to calculate the median and range for each of their scores.

Bernie's Scores:

  • Scores: 90, 110, 115, 120, 118, 130, 124, 125

  • Arranged: 90, 110, 115, 118, 120, 124, 125, 130

  • Median: The median is the average of the 4th and 5th scores. \[ \text{Median} = \frac{118 + 120}{2} = 119 \]

  • Range: The range is the difference between the maximum and minimum scores. \[ \text{Range} = 130 - 90 = 40 \]

Sarah's Scores:

  • Scores: 100, 120, 110, 105, 95, 125, 170, 155

  • Arranged: 95, 100, 105, 110, 120, 125, 155, 170

  • Median: The median is the average of the 4th and 5th scores. \[ \text{Median} = \frac{110 + 120}{2} = 115 \]

  • Range: The range is the difference between the maximum and minimum scores. \[ \text{Range} = 170 - 95 = 75 \]

Now we summarize the findings:

  • Bernie's median score: 119
  • Sarah's median score: 115
  • Bernie's range: 40
  • Sarah's range: 75

Now, we evaluate each statement:

A. Sarah has the same median score as Bernie.
False (119 ≠ 115)

B. Bernie has the same range of scores as Sarah.
False (40 ≠ 75)

C. Sarah has a greater median score than Bernie.
False (115 < 119)

D. Bernie has a greater median score than Sarah.
True (119 > 115)

E. Sarah has a greater range of scores than Bernie.
True (75 > 40)

Final Evaluation of Statements:

  • D: True
  • E: True

Thus, the true statements about the scores are D and E.