Practice Test Geeks(TCAP) Tennessee Comprehensive Assessment Program Practice Test
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Data Analysis Flashcards

7 cards from real TCAP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Data Analysis flashcards as text

  1. A stem-and-leaf plot shows the following data: 3|2 5 8, 4|1 4 7 9, 5|0 3. What is the median of this data set?

    Answer: 44

    Listing all values in order: 32, 35, 38, 41, 44, 47, 49, 50, 53 — the middle (5th) value is 44.

  2. A survey asked 80 students to pick their favorite school subject. If 20% chose Math, how many students chose Math?

    Answer: 16

    20% of 80 = 0.20 × 80 = 16 students.

  3. Which measure of central tendency is most affected by an outlier in a data set?

    Answer: Mean

    The mean uses all values in its calculation, so an extreme outlier shifts it significantly.

  4. A line graph shows a company's sales rising from $200 in January to $350 in June. What is the overall change in sales?

    Answer: $150

    $350 − $200 = $150 increase over the six-month period.

  5. In a frequency table, the category 'Blue' has a frequency of 15 out of 60 total responses. What is the relative frequency?

    Answer: 25%

    15 ÷ 60 = 0.25, which equals 25%.

  6. A box plot has a minimum of 10, Q1 of 20, median of 30, Q3 of 45, and maximum of 60. What is the interquartile range (IQR)?

    Answer: 25

    IQR = Q3 − Q1 = 45 − 20 = 25.

  7. A scatter plot of hours studied vs. test scores shows points clustering from lower-left to upper-right. What type of correlation does this represent?

    Answer: Positive correlation

    Points trending from lower-left to upper-right indicate a positive correlation — as one variable increases, the other increases too.

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