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Lesson 1: Stem-and-Leaf Plots — Practice Questions

  1. 1. A stem-and-leaf plot is made for the following set of points scored in a game: $12, 25, 18, 21, 15, 25$. How many leaves would be next to stem $1$? ___

  2. 2. A stem-and-leaf plot is created for the following quiz scores: $78, 81, 85, 88, 92, 45$. Which score is an outlier because it is significantly different from the others?

    • A. $45$
    • B. $78$
    • C. $85$
    • D. $92$
  3. 3. In a stem-and-leaf plot of student heights in centimeters, the row for stem $15$ has the leaves $2, 5, 8$. What is the tallest height in centimeters represented in this row? ___

  4. 4. A stem-and-leaf plot of daily high temperatures shows stem $6$ with leaves $7, 8, 9$; stem $7$ with leaves $0, 1, 2, 2, 3, 5, 8$; and stem $8$ with leaves $1, 2$. Where is the peak of this data distribution?

    • A. Stem 6
    • B. Stem 7
    • C. Stem 8
    • D. There is no peak
  5. 5. A stem-and-leaf plot is made for the data set: $52, 61, 55, 58, 63, 52, 59$. If the leaves for stem $5$ are written in increasing order, what is the last leaf listed? ___

  6. 6. For the data set {$54, 48, 51, 62, 45, 59$}, the leaves for the stem 5 are ___. Write the leaves in increasing order with no spaces.

  7. 7. When creating a stem-and-leaf plot from a list of numbers, what is the essential first step to ensure the plot is constructed correctly?

    • A. Order the data from least to greatest.
    • B. Choose the stems and leaves.
    • C. Write the stems vertically.
    • D. Include a key.
  8. 8. Consider the data set: {$112, 125, 118, 121, 116, 129$}. Using the first two digits as the stem, what should be written for the row with stem 11? `11|___`

  9. 9. A stem-and-leaf plot has rows `6|25`, `7|018`, and `8|4`. If the key is `6|2` means `62`, which list represents the complete data set?

    • A. $62, 65, 70, 71, 78, 84$
    • B. $84, 78, 71, 70, 65, 62$
    • C. $2, 5, 0, 1, 8, 4$
    • D. $62, 56, 70, 17, 87, 48$
  10. 10. The data set {21, 42, 30, 24, ___} is represented by the stem-and-leaf plot with rows `2|14`, `3|05`, and `4|2`. What is the missing data value?