Practice Test GeeksCHSPE - California High School Proficiency Examination Practice Test
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Data Analysis Flashcards

7 cards from real CHSPE 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 line of best fit on a scatter plot is used to:

    Answer: Predict values and show trends in the data

    A line of best fit (trend line) is used to identify trends and make predictions about data.

  2. The range of the data set {12, 15, 18, 22, 30} is:

    Answer: 18

    Range = maximum − minimum = 30 − 12 = 18.

  3. Which sampling method gives every member of a population an equal chance of being selected?

    Answer: Random sampling

    Random sampling gives every member an equal chance of selection, reducing bias.

  4. A bar graph shows monthly rainfall. June had 3 inches, July had 5 inches, August had 4 inches. What was the average monthly rainfall for those three months?

    Answer: 4 inches

    (3 + 5 + 4) ÷ 3 = 12 ÷ 3 = 4 inches.

  5. In a data set, an outlier is BEST described as:

    Answer: A value far from the rest of the data

    An outlier is a data point that lies significantly far from the other values in the set.

  6. A frequency table shows: Score 70 (5 students), 80 (8 students), 90 (7 students). How many students scored above 75?

    Answer: 15

    Students scoring above 75 are those who scored 80 (8) and 90 (7), totaling 15.

  7. A student rolls a number cube (1–6) twice. What is the probability of rolling a 3 both times?

    Answer: 1/36

    Independent events: (1/6) × (1/6) = 1/36.