A dataset contains the values 4, 7, 7, 9, 13. What is the mean?

The mean is 8. Add all values (4+7+7+9+13=40) and divide by the number of values (40÷5=8).

What is the median of the dataset: 3, 8, 2, 15, 6?

The median is 6. First arrange in order (2, 3, 6, 8, 15), then identify the middle value, which is 6.

What is the mode of the dataset: 5, 3, 9, 3, 7, 5, 3?

The mode is 3, because it appears more frequently (3 times) than any other value in the dataset.

When a dataset has an even number of values, how is the median calculated?

The median is the average (mean) of the two middle values after the data is arranged in ascending order.

A teacher's test scores are 70, 85, 90, 90, 95. Which measure of central tendency best represents the typical score if one outlier is added at 10?

The median best represents the typical score because it is resistant to outliers, while the mean would be pulled significantly downward by the extreme low value.

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Praxis Core: Statistics & Geometry

Master the Statistics and Geometry concepts tested on the Praxis Core Math exam with these 28 targeted flashcards. Covers measures of central tendency, data interpretation, geometric formulas, and spatial reasoning essential for teacher certification success.

28 cards Intermediate Measures of Central Tendency Data Interpretation Probability & Statistics Concepts Geometry: Area & Perimeter Geometry: Volume & 3D Shapes Geometry: Angles & Shapes

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