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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 data set is: 2, 4, 4, 6, 8, 8, 8, 10. What is the mean?

    Answer: 6.25

    Sum = 2+4+4+6+8+8+8+10 = 50; mean = 50 ÷ 8 = 6.25.

  2. A student records daily temperatures for a week: 72, 75, 68, 80, 77, 73, 71. Which value is an outlier?

    Answer: There is no outlier

    All values fall within a reasonable range (68–80), so no single value is extreme enough to be an outlier.

  3. A spinner is spun 50 times and lands on red 20 times. What is the experimental probability of landing on red?

    Answer: 2/5

    Experimental probability = 20/50 = 2/5.

  4. Which type of graph is most appropriate for displaying change in temperature over a 24-hour period?

    Answer: Line graph

    A line graph is best for showing continuous change over time.

  5. A class collected data on shoe sizes: 5, 6, 6, 7, 7, 7, 8, 8, 9. What is the median shoe size?

    Answer: 7

    With 9 values, the median is the 5th value; counting the ordered list gives 7.

  6. In a survey, 12 out of 48 students prefer volleyball. What fraction of students prefer volleyball in simplest form?

    Answer: 1/4

    12/48 simplifies to 1/4 by dividing both numerator and denominator by 12.

  7. A box plot shows the median at 55, Q1 at 40, and Q3 at 70. About what percent of the data falls between 40 and 70?

    Answer: 50%

    The IQR (Q1 to Q3) always contains the middle 50% of data in a box plot.

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Data Analysis Flashcards — TCAP Study Cards with Answers