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West B Math: Data Analysis and Statistics Flashcards

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

Read the first 6 West B Math: Data Analysis and Statistics flashcards as text

  1. The test scores of five students are: 72, 85, 90, 68, and 95. What is the mean (average) score?

    Answer: 82

    The mean is (72+85+90+68+95) ÷ 5 = 410 ÷ 5 = 82.

  2. In the data set {3, 7, 7, 9, 12, 15}, what is the mode?

    Answer: 7

    The mode is the value that appears most often; 7 appears twice while all others appear once.

  3. A bar graph shows four categories with values 10, 25, 15, and 30. Which category has the highest value?

    Answer: The category with value 30

    30 is the largest value among 10, 25, 15, and 30, so that category is tallest on the bar graph.

  4. What does the median represent in a data set?

    Answer: The middle value when data is ordered

    The median is the middle value in a data set that has been arranged in order from least to greatest.

  5. A pie chart shows that 40% of students prefer math, 35% prefer reading, and 25% prefer science. What percentage prefer either math or science?

    Answer: 65%

    Adding math (40%) and science (25%) gives 65% of students preferring either math or science.

  6. The range of a data set is calculated by:

    Answer: Subtracting the lowest value from the highest value

    Range measures the spread of data and equals the highest value minus the lowest value.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. pesb.wa.gov — Eligibility · verified Oct 2026
  2. west.nesinc.com — Fees, score validity, retake policy, test delivery, exam format, passing score, test dates, time limit · verified Oct 2026