Practice Test GeeksPCAT - Pharmacy College Admission Test Practice Test
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Statistics Flashcards

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

Read the first 7 Statistics flashcards as text

  1. Which of the following best describes a Type II error?

    Answer: Failing to reject a false null hypothesis

    A Type II error (β) occurs when you fail to detect a real effect — failing to reject a false null hypothesis.

  2. A pharmacist records pill weights: 98, 100, 102, 100, 99, 101, 100. What is the mode?

    Answer: 100

    100 appears three times, more than any other value, making it the mode.

  3. What does a correlation coefficient of r = -0.85 indicate?

    Answer: A strong negative linear relationship

    Values of r close to -1 indicate a strong negative linear relationship between two variables.

  4. In a right-skewed distribution, which ordering is correct?

    Answer: Mean > Median > Mode

    In a right-skewed distribution, the tail pulls the mean higher than the median, which is higher than the mode.

  5. A study finds that taking aspirin reduces headache duration. This is an example of what type of relationship?

    Answer: Causal relationship

    Randomized controlled experiments establish causal relationships when confounders are properly controlled.

  6. What is the interquartile range (IQR) of the dataset {3, 5, 7, 9, 11, 13, 15}?

    Answer: 8

    Q1 = 5, Q3 = 13, so IQR = 13 - 5 = 8.

  7. Which sampling method ensures every member of a population has an equal chance of being selected?

    Answer: Simple random sampling

    Simple random sampling gives every individual an equal and independent probability of being selected.