Question

The dataset 3, 6, 2, 8, 6, 6, 9, 10, 3 represents the scores on the most recent quiz. Describe the change in the distribution of data if an additional number is added. If you add the score of 4, what part of the five-number summary will change?(1 point)
Responses

Q1
Q1

Q3
Q3

minimum
minimum

median
median
Skip to navigation

2 answers

To determine how the five-number summary changes with the addition of the score of 4 to the dataset \(3, 6, 2, 8, 6, 6, 9, 10, 3\), we first need to calculate the five-number summary of the original dataset, which consists of:

  1. Minimum
  2. First quartile (Q1)
  3. Median
  4. Third quartile (Q3)
  5. Maximum

Step 1: Order the original dataset The dataset ordered from lowest to highest is: \[ 2, 3, 3, 6, 6, 6, 8, 9, 10 \]

Step 2: Calculate the five-number summary of the original dataset

  • Minimum: \(2\)
  • Maximum: \(10\)
  • Median (middle value for 9 data points): \(6\)
  • Q1 (1st quartile, median of the first half): \(3\)
  • Q3 (3rd quartile, median of the second half): \(8\)

Step 3: Add the score of 4 to the dataset The new dataset is: \[ 2, 3, 3, 4, 6, 6, 6, 8, 9, 10 \]

Step 4: Order the new dataset The new ordered dataset is: \[ 2, 3, 3, 4, 6, 6, 6, 8, 9, 10 \]

Step 5: Calculate the five-number summary of the new dataset

  • Minimum: \(2\) (no change)
  • Maximum: \(10\) (no change)
  • Median: (average of the 5th and 6th values in a dataset with 10 points): \((6 + 6) / 2 = 6\) (no change)
  • Q1 (median of the first half): the first half is \(2, 3, 3, 4, 6\) → Q1 is \(3\) (no change)
  • Q3 (median of the second half): the second half is \(6, 6, 8, 9, 10\) → Q3 is \(8\) (no change)

Conclusion Adding the score of 4 does not change any part of the five-number summary. Therefore, none of the components (minimum, Q1, median, Q3, maximum) change with the addition of the score of 4.

Final Answer: None of the options provided (Q1, Q3, minimum, median) will change.