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CBEST - California Basic Educational Skills Math: Data Interpretation and Statistics Flashcards

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

Read the first 6 CBEST - California Basic Educational Skills Math: Data Interpretation and Statistics flashcards as text

  1. Which measure of central tendency is most affected by an outlier?

    Answer: Mean

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

  2. A table shows 5 quiz scores: 80, 90, 70, 85, 75. What is the mean score?

    Answer: 80

    (80+90+70+85+75) ÷ 5 = 400 ÷ 5 = 80.

  3. On a number line plot, most data points are clustered near 50 with a few near 90. The distribution is best described as:

    Answer: Skewed right

    When most data clusters low with a few high values, the tail extends right, making it right-skewed.

  4. A bag has 3 red marbles, 5 blue marbles, and 2 green marbles. What is the probability of randomly picking a blue marble?

    Answer: 1/2

    P(blue) = 5/10 = 1/2.

  5. A circle graph (pie chart) shows that 25% of a budget goes to supplies. If the total budget is $8,000, how much is spent on supplies?

    Answer: $2,000

    25% of $8,000 = 0.25 × 8,000 = $2,000.

  6. Which graph is best suited to show how a student's reading speed changed over six months?

    Answer: Line graph

    Line graphs are ideal for displaying change or trends over a continuous time period.