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Statistics and Probability Flashcards

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

Read the first 6 Statistics and Probability flashcards as text
  1. What is the range of: 15, 22, 8, 31, 19?

    Answer: 23

    Range = maximum - minimum = 31 - 8 = 23.

  2. A standard die is rolled. What is the probability of rolling a number greater than 4?

    Answer: 1/3

    Numbers greater than 4 are 5 and 6, so P = 2/6 = 1/3.

  3. In a class of 30 students, 12 prefer math. What percentage prefer math?

    Answer: 40%

    12/30 × 100% = 40%.

  4. What type of correlation is shown when one variable increases as the other decreases?

    Answer: Negative correlation

    A negative correlation means one variable increases while the other decreases.

  5. Which display best shows the distribution of a large data set?

    Answer: Histogram

    A histogram is designed to display the frequency distribution of continuous numerical data.

  6. A card is drawn at random from a standard 52-card deck. What is the probability of drawing a king?

    Answer: 1/13

    There are 4 kings in 52 cards: P = 4/52 = 1/13.